change default HTTPS client to hyper1 (#4040)

## Motivation and Context
<!--- Why is this change required? What problem does it solve? -->
<!--- If it fixes an open issue, please link to the issue here -->
* #3710
* #1925
* awslabs/aws-sdk-rust#977


## Description
Updates the default HTTPS client to be based off hyper 1.x, rustls, and
aws-lc. See the GitHub discussion:
awslabs/aws-sdk-rust#1257

This PR is a rollup of previously reviewed PRs:

* Refactor the runtime structure and consolidate HTTP client
implementation(s):
[smithy-rs#3866](#3866)
* Migrate HTTP test utils:
[smithy-rs#3888](#3888)
* Update runtime to use new test utils:
[smithy-rs#3898](#3898)
* Backport connection poisoning:
[smithy-rs#3795](#3795)
* Deprecate HTTP 02x presign APIs:
[smithy-rs#3823](#3823)
* Enable hyper1 as default client: [smithy-rs#]()
* Enable hyper1 behind
BMV:[smithy-rs#3973](#3973)
* s2n-tls provider (by Sam):
[smithy-rs#3965](#3965)
* custom TLS config:
[smithy-rs#4032](#4032)

## Testing
<!--- Please describe in detail how you tested your changes -->
<!--- Include details of your testing environment, and the tests you ran
to -->
<!--- see how your change affects other areas of the code, etc. -->

## Checklist
<!--- If a checkbox below is not applicable, then please DELETE it
rather than leaving it unchecked -->
- [x] For changes to the smithy-rs codegen or runtime crates, I have
created a changelog entry Markdown file in the `.changelog` directory,
specifying "client," "server," or both in the `applies_to` key.
- [x] For changes to the AWS SDK, generated SDK code, or SDK runtime
crates, I have created a changelog entry Markdown file in the
`.changelog` directory, specifying "aws-sdk-rust" in the `applies_to`
key.

----

_By submitting this pull request, I confirm that you can use, modify,
copy, and redistribute this contribution, under the terms of your
choice._

---------

Co-authored-by: Sam Clark <[email protected]>
Co-authored-by: Landon James <[email protected]>

Author: 3 people

.changelog/1741027916.md

@@ -0,0 +1,15 @@
+---
+applies_to:
+- aws-sdk-rust
+- client
+authors:
+- aajtodd
+references:
+- aws-sdk-rust#977
+- smithy-rs#1925
+- smithy-rs#3710
+breaking: false
+new_feature: false
+bug_fix: false
+---
+Updates the default HTTP client to be based on the 1.x version of hyper and updates the default TLS provider to [rustls](https://github.com/rustls/rustls) with [aws-lc](https://github.com/aws/aws-lc-rs). For more information see the GitHub [discussion](https://github.com/awslabs/aws-sdk-rust/discussions/1257).

.github/workflows/ci.yml

@@ -241,35 +241,35 @@ jobs:
     name: Exotic platform support
     runs-on: ubuntu-latest
     timeout-minutes: 10
+    env:
+      CROSS_CONFIG: Cross.toml
     strategy:
       fail-fast: false
+      # We always exclude `aws-smithy-http-server-python`, `aws-smithy-http-server-typescript`, and `aws-smithy-experimental` since they are experimental.
+      # We exclude `aws-smithy-http-client` due to FIPS related feature flags and aws-lc-fips target support
       matrix:
         include:
-        # We always exclude `aws-smithy-http-server-python` and
-        # `aws-smithy-http-server-typescript` since they are experimental.
         - target: i686-unknown-linux-gnu
           build_smithy_rs_features: --all-features
           build_aws_exclude: ''
-          build_smithy_rs_exclude: --exclude aws-smithy-http-server-python --exclude aws-smithy-http-server-typescript --exclude aws-smithy-experimental
+          build_smithy_rs_exclude: --exclude aws-smithy-http-server-python --exclude aws-smithy-http-server-typescript --exclude aws-smithy-experimental --exclude aws-smithy-http-client
           test_smithy_rs_features: --all-features
           test_aws_exclude: ''
-          test_smithy_rs_exclude: --exclude aws-smithy-http-server-python --exclude aws-smithy-http-server-typescript --exclude aws-smithy-experimental
+          test_smithy_rs_exclude: --exclude aws-smithy-http-server-python --exclude aws-smithy-http-server-typescript --exclude aws-smithy-experimental --exclude aws-smithy-http-client
         - target: powerpc-unknown-linux-gnu
           build_smithy_rs_features: ''
           build_aws_exclude: --exclude aws-inlineable
-          build_smithy_rs_exclude: --exclude aws-smithy-http-server-python --exclude aws-smithy-http-server-typescript --exclude aws-smithy-experimental
+          build_smithy_rs_exclude: --exclude aws-smithy-http-server-python --exclude aws-smithy-http-server-typescript --exclude aws-smithy-experimental --exclude aws-smithy-http-client
           test_smithy_rs_features: ''
           test_aws_exclude: --exclude aws-inlineable
-          test_smithy_rs_exclude: --exclude aws-smithy-http-server-python --exclude aws-smithy-http-server-typescript
+          test_smithy_rs_exclude: --exclude aws-smithy-http-server-python --exclude aws-smithy-http-server-typescript --exclude aws-smithy-experimental --exclude aws-smithy-http-client
         - target: powerpc64-unknown-linux-gnu
           build_smithy_rs_features: ''
           build_aws_exclude: --exclude aws-inlineable
-          build_smithy_rs_exclude: --exclude aws-smithy-http-server-python --exclude aws-smithy-http-server-typescript --exclude aws-smithy-experimental
+          build_smithy_rs_exclude: --exclude aws-smithy-http-server-python --exclude aws-smithy-http-server-typescript --exclude aws-smithy-experimental --exclude aws-smithy-http-client
           test_smithy_rs_features: ''
           test_aws_exclude: --exclude aws-inlineable
-          test_smithy_rs_exclude: --exclude aws-smithy-http-server-python --exclude aws-smithy-http-server-typescript --exclude aws-smithy-experimental
-    env:
-      CROSS_CONFIG: Cross.toml
+          test_smithy_rs_exclude: --exclude aws-smithy-http-server-python --exclude aws-smithy-http-server-typescript --exclude aws-smithy-experimental --exclude aws-smithy-http-client
     steps:
     - name: Checkout
       uses: actions/checkout@v4