Create 0.28.1 Patch release

[youngbupark]

Description

This is the patch release to fix radius-project/bicep#701.

Type of change

• This pull request is a minor refactor, code cleanup, test improvement, or other maintenance task and doesn't change the functionality of Radius (issue link optional).

Auto-generated summary

copilot:all

[github-actions]

Release Information

• Previous version: v0.28.0
• New version: v0.28.1

Change logs

<!-- Release notes generated using configuration in .github/release.yml at main -->

## What's Changed
### ## changelog
* Add Instructions on Running Tests to the Contributions Guide by @kachawla in https://github.com/radius-project/radius/pull/6926
* Create Release v0.28.0 by @lakshmimsft in https://github.com/radius-project/radius/pull/6929
* Remove stale devcontainer by @rynowak in https://github.com/radius-project/radius/pull/6931
* Update Release Contribution Docs by @kachawla in https://github.com/radius-project/radius/pull/6928
* Doing some updates to the magpie by @ytimocin in https://github.com/radius-project/radius/pull/6925
* Add edge rad CLI install by @willdavsmith in https://github.com/radius-project/radius/pull/6899
* Update Release Contribution docs by @lakshmimsft in https://github.com/radius-project/radius/pull/6935
* Implement tracked resources by @rynowak in https://github.com/radius-project/radius/pull/6204
* feat: add devcontainer feature for radcli by @lechnerc77 in https://github.com/radius-project/radius/pull/6930
* fix: remove schema validation from feature release flow by @lechnerc77 in https://github.com/radius-project/radius/pull/6945
* updating plainHTTP to plainHttp by @vishwahiremat in https://github.com/radius-project/radius/pull/6943
* rewrite app connections to use getGraph API by @nithyatsu in https://github.com/radius-project/radius/pull/6938
* chore: improve setup of devconatiner for contributions by @lechnerc77 in https://github.com/radius-project/radius/pull/6954
* Updating radius.dev strings by @ytimocin in https://github.com/radius-project/radius/pull/6966
* Update devcontainer publishing path by @rynowak in https://github.com/radius-project/radius/pull/6967
* docs: update prerequiste and debug docs by @lechnerc77 in https://github.com/radius-project/radius/pull/6965
* Fix namespace in devcontainer feature publishing by @rynowak in https://github.com/radius-project/radius/pull/6970
* Change SSL_CERT_DIRS to SSL_CERT_DIR by @youngbupark in https://github.com/radius-project/radius/pull/6971


**Full Changelog**: https://github.com/radius-project/radius/compare/v0.28.0...v0.28.1

⚠️ Missing release note ⚠️

This is the official Radius release. Create the release note by following instruction:

1. Create ./docs/release-notes/v0.28.1.md from release note template
2. Update the each section and add the above Change logs to the end of release note.
3. Push release note changes to the PR branch.

[github-actions]

Test Results

3 038 tests  ±0   3 028 ✔️ ±0   3m 32s ⏱️ +2s
   260 suites ±0        10 💤 ±0 
       1 files   ±0          0 ❌ ±0 

Results for commit 28ca968. ± Comparison against base commit 1145be1.

[github-actions]

For the detailed report, please go to Checks tab, click Build and Test, and then download unit_test_coverage artifact at the bottom of build page.

• Your PR branch coverage: 65.5 %
• main branch coverage: 65.5 %
• diff coverage: 0 %

The coverage result does not include the functional test coverage.