Update simplesamlphp/simplesamlphp-test-framework requirement

Updates the requirements on [simplesamlphp/simplesamlphp-test-framework](https://github.com/simplesamlphp/simplesamlphp-test-framework) to permit the latest version.

Updates `simplesamlphp/simplesamlphp-test-framework` to 2.0.1
- [Commits](simplesamlphp/simplesamlphp-test-framework@v1.11.0...v2.0.1)

---
updated-dependencies:
- dependency-name: simplesamlphp/simplesamlphp-test-framework
  dependency-version: 2.0.1
  dependency-type: direct:development
  dependency-group: dev-dependencies
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

composer.json

@@ -47,7 +47,7 @@
         "simplesamlphp/xml-common": "3.0"
     },
     "require-dev": {
-        "simplesamlphp/simplesamlphp-test-framework": "~1.11"
+        "simplesamlphp/simplesamlphp-test-framework": "~2.0"
     },
     "extra": {
         "branch-alias": {