Update release used by start-proxy to codeql-bundle-v2.22.0

[github-actions]

This PR updates the start-proxy action to use the private registry proxy binaries that
are attached as release assets to the codeql-bundle-v2.22.0 release.

Please do the following before merging:

• Verify that the changes to the code are correct.
• Mark the PR as ready for review to trigger the CI.

[Copilot]

Pull Request Overview

Updates the start-proxy action to use the new codeql-bundle-v2.22.0 release by bumping the proxy version and download URL.

• Bump UPDATEJOB_PROXY_VERSION to v2.0.20250624110901
• Update UPDATEJOB_PROXY_URL_PREFIX to point at codeql-bundle-v2.22.0

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
src/start-proxy-action.ts	Updated version constant and release URL prefix
lib/start-proxy-action.js	Mirrored version and URL updates in compiled JS

Comments suppressed due to low confidence (1)

lib/start-proxy-action.js:47

• There are no tests verifying the updated proxy version and URL prefix. Adding or updating tests to validate these constants will help catch incorrect values in future updates.

const UPDATEJOB_PROXY_URL_PREFIX = "https://github.com/github/codeql-action/releases/download/codeql-bundle-v2.22.0/";