build(deps): Bump ikalnytskyi/action-setup-postgres from 7 to 8 (#2084)

Bumps [ikalnytskyi/action-setup-postgres](https://github.com/ikalnytskyi/action-setup-postgres) from 7 to 8.
- [Release notes](https://github.com/ikalnytskyi/action-setup-postgres/releases)
- [Commits](https://github.com/ikalnytskyi/action-setup-postgres/compare/v7...v8)

---
updated-dependencies:
- dependency-name: ikalnytskyi/action-setup-postgres
  dependency-version: '8'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/tests.yml

@@ -51,7 +51,7 @@ jobs:
 
     - name: Setup Postgres
       if: matrix.psql == true
-      uses: ikalnytskyi/action-setup-postgres@v7
+      uses: ikalnytskyi/action-setup-postgres@v8
       with:
         database: gct_dev_ci
       id: postgres