Bump github/gh-aw from 0.71.5 to 0.73.0 in the github-actions group

Bumps the github-actions group with 1 update: [github/gh-aw](https://github.com/github/gh-aw).


Updates `github/gh-aw` from 0.71.5 to 0.73.0
- [Release notes](https://github.com/github/gh-aw/releases)
- [Changelog](https://github.com/github/gh-aw/blob/main/CHANGELOG.md)
- [Commits](github/gh-aw@19ac811...4d44d0e)

---
updated-dependencies:
- dependency-name: github/gh-aw
  dependency-version: 0.73.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: github-actions
...

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

Author: dependabot[bot]

.github/workflows/copilot-setup-steps.yml

@@ -24,7 +24,7 @@ jobs:
 
       # Install GitHub CLI and gh-aw extension for Copilot Agent interaction
       - name: Install gh-aw extension
-        uses: github/gh-aw/actions/setup-cli@19ac811a4a85389c33b15128e1d7b7d4507f814a # v0.71.5
+        uses: github/gh-aw/actions/setup-cli@4d44d0e89851a877f4ddc0cb6c0197e42b1016c5 # v0.73.0
         with:
           version: v0.68.3