build(deps): bump actions/setup-go from 4 to 5

Bumps [actions/setup-go](https://github.com/actions/setup-go) from 4 to 5.
- [Release notes](https://github.com/actions/setup-go/releases)
- [Commits](actions/setup-go@v4...v5)

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

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

.github/workflows/ci.yml

@@ -30,7 +30,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - uses: actions/setup-go@v4
+      - uses: actions/setup-go@v5
         with:
           # We currently need to pick a set Go version because sometimes Go
           # updates will change the output of gofmt. Ideally we would have some
@@ -56,7 +56,7 @@ jobs:
       COVERAGE: umoci.coverage
     steps:
       - uses: actions/checkout@v3
-      - uses: actions/setup-go@v4
+      - uses: actions/setup-go@v5
         with:
           go-version: '^1'
       - name: install dependencies