Bump actions/setup-go from 6 to 7

Bumps [actions/setup-go](https://github.com/actions/setup-go) from 6 to 7.
- [Release notes](https://github.com/actions/setup-go/releases)
- [Commits](https://github.com/actions/setup-go/compare/v6...v7)

---
updated-dependencies:
- dependency-name: actions/setup-go
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/tests.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v6
-      - uses: actions/setup-go@v6
+      - uses: actions/setup-go@v7
         with:
           go-version: '1.25'
           cache: false