Refactor GitHub Copilot setup workflow for improved script handling and robustness

Author: johlju

CHANGELOG.md

@@ -19,6 +19,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   - Switch the workflow to use Linux.
   - Attempt to unshallow the Copilot branch
   - Improved AI instructions.
+  - Refactor to use improved script ([issue #2127](https://github.com/dsccommunity/SqlServerDsc/issues/2127)).
 - `Assert-SqlDscLogin`
   - Added new public command to validate that a specified SQL Server principal
     exists as a login, throwing a terminating error if it doesn't exist.
@@ -53,10 +54,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Module now outputs a verbose message instead of a warning when the SMO
   dependency module is missing during import to work around a DSC v3 issue.
 - VS Code tasks configuration was improved to support AI.
-- `.github/workflows/copilot-setup-steps.yml` (fixes [issue #2127](https://github.com/dsccommunity/SqlServerDsc/issues/2127))
-  - Ensure full Git history/tags for GitVersion with a robust shallow check.
-  - Generalize workflow via `MODULE_NAME` env var and Linux‑friendly paths.
-  - Make .NET tool install idempotent and tighten module import verification.
 - `Prerequisites` tests
   - Added creation of `SqlIntegrationTest` local Windows user for integration testing.
 - `tests/Integration/Commands/README.md`