chore(deps): bump azure/powershell from 1 to 2

Bumps [azure/powershell](https://github.com/azure/powershell) from 1 to 2.
- [Release notes](https://github.com/azure/powershell/releases)
- [Commits](Azure/powershell@v1...v2)

---
updated-dependencies:
- dependency-name: azure/powershell
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/update-policy.yml

@@ -66,7 +66,7 @@ jobs:
           GITHUB_TOKEN: ${{ steps.generate-token.outputs.token }}
 
       - name: Update library templates
-        uses: azure/powershell@v1
+        uses: azure/powershell@v2
         with:
           inlineScript: |
             Write-Information "==> Running policy definitions script..." -InformationAction Continue