[DRAFT] Proposed Python release changes, partial

[lucasmcdonald3]

Description of changes:

Changes from ESDK release process

• No park. This seems like more effort to set up for a package without setup.py. This is a 2-way door, we can come back and add this later.
• validate tests involve installing the package from PyPI and running tests against the published package.
  • ESDK's validate tested against a downstream dependency (busy-engineers-guide), but not every MPL subproject has a separate downstream dependency. Only the MPL-Core does. For the MPL-Core, this will also test against the ESDK as a downstream dependency.
• Use pyproject.toml poetry configs instead of .txt files

I only made changes for MPL-Core and Primitives as a proof of concept for other subprojects.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[github-actions]

@lucasmcdonald3, I noticed you are updating the smithy model files.
Does this update need new or updated javadoc trait documentation?
Are you adding constraints inside list, map or union? Do you know about this issue: smithy-lang/smithy-dafny#491?

[github-actions]

Detected changes to the release files or to the check-files action

[github-actions]

Changes to the release files or the check-files action requires 2 approvals from CODEOWNERS

[github-actions]

@lucasmcdonald3, I noticed you are updating the smithy model files.
Does this update need new or updated javadoc trait documentation?
Are you adding constraints inside list, map or union? Do you know about this issue: smithy-lang/smithy-dafny#491?

[github-actions]

Detected changes to the release files or to the check-files action

[github-actions]

Changes to the release files or the check-files action requires 2 approvals from CODEOWNERS

[github-actions]

@lucasmcdonald3, I noticed you are updating the smithy model files.
Does this update need new or updated javadoc trait documentation?
Are you adding constraints inside list, map or union? Do you know about this issue: smithy-lang/smithy-dafny#491?

[github-actions]

Detected changes to the release files or to the check-files action

[github-actions]

Changes to the release files or the check-files action requires 2 approvals from CODEOWNERS

[github-actions]

@lucasmcdonald3, I noticed you are updating the smithy model files.
Does this update need new or updated javadoc trait documentation?
Are you adding constraints inside list, map or union? Do you know about this issue: smithy-lang/smithy-dafny#491?

[github-actions]

Detected changes to the release files or to the check-files action

[github-actions]

Changes to the release files or the check-files action requires 2 approvals from CODEOWNERS