fix: update third-party license attributions

[j-d-ha]

🚀 Pull Request

📋 Summary

This PR updates the license attributions in source code files to accurately reflect the copyright holders and source references for third-party code:

• ASP.NET Core files: Updated copyright from ".NET Foundation" to ".NET Foundation and Contributors" to match the official copyright notice in the ASP.NET Core repository
• Azure Functions Worker files:
  • Corrected copyright holder from ".NET Foundation" to "Microsoft Corporation" for IFeatureProvider
  • Updated source URLs to point to specific version tags (2.51.0) instead of main branch for reproducibility

These changes ensure proper attribution and make it easier to verify the original source code.

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✅ Checklist

• My changes build cleanly
• I've added/updated relevant tests
• I've added/updated documentation or README
• I've followed the coding style for this project
• I've tested the changes locally (if applicable)

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🧪 Related Issues or PRs

N/A - Documentation/attribution updates only

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💬 Notes for Reviewers

This PR only updates source code comments for attribution purposes. No functional code changes were made. All changes are to XML documentation comments that reference the original source repositories.

The changes correct:

1. Copyright holders to match the actual copyright notices in the source repositories
2. Source URLs to use specific version tags for better traceability

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

@@           Coverage Diff           @@
##             main     #217   +/-   ##
=======================================
  Coverage   90.92%   90.92%           
=======================================
  Files         102      102           
  Lines        2227     2227           
  Branches      252      252           
=======================================
  Hits         2025     2025           
  Misses        109      109           
  Partials       93       93           

Files with missing lines	Coverage Δ
...AwsLambda.Host/Builder/LambdaApplicationBuilder.cs	95.72% <ø> (ø)
...bda.Host/Core/Context/LambdaHostContextAccessor.cs	100.00% <ø> (ø)
...mbda.Host/Core/Options/LambdaApplicationOptions.cs	100.00% <ø> (ø)

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