Build(deps): Bump actions/setup-go from 2 to 4

Bumps [actions/setup-go](https://github.com/actions/setup-go) from 2 to 4.
- [Release notes](https://github.com/actions/setup-go/releases)
- [Commits](actions/setup-go@v2...v4)

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

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

Author: dependabot[bot]

.github/workflows/testsingularity.yml

@@ -27,7 +27,7 @@ jobs:
           ref: 'v3.7.1'
           path: 'singularity'
       - name: Setup GO
-        uses: actions/setup-go@v2
+        uses: actions/setup-go@v4
         with:
           go-version: '^1.13'
       - name: Install OS deps