Bump insightsengineering/coverage-action from 2.5.1 to 2.6.0

Bumps [insightsengineering/coverage-action](https://github.com/insightsengineering/coverage-action) from 2.5.1 to 2.6.0.
- [Release notes](https://github.com/insightsengineering/coverage-action/releases)
- [Commits](insightsengineering/coverage-action@v2.5.1...v2.6.0)

---
updated-dependencies:
- dependency-name: insightsengineering/coverage-action
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/sqlserver-unit.yml

@@ -115,7 +115,7 @@ jobs:
 
       # Only do cov report on latest SQL Server version
       - name: Produce the coverage report
-        uses: insightsengineering/coverage-action@v2.5.1
+        uses: insightsengineering/coverage-action@v2.6.0
         id: cov-report
         if: ${{ matrix.sql_server == 2022 }}
         with: