build(deps): bump actions/setup-go from 3 to 4

Bumps [actions/setup-go](https://github.com/actions/setup-go) from 3 to 4.
- [Release notes](https://github.com/actions/setup-go/releases)
- [Commits](https://github.com/actions/setup-go/compare/v3...v4)

---
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/tests.yml

@@ -64,7 +64,7 @@ jobs:
     - name: Install test dependencies
       run: sudo apt-get install -y libgpgme-dev
     - uses: actions/checkout@v3
-    - uses: actions/setup-go@v3
+    - uses: actions/setup-go@v4
       with:
         go-version: 1.18
     - env:
@@ -107,7 +107,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Set up Go 1.18
-        uses: actions/setup-go@v3
+        uses: actions/setup-go@v4
         with:
           go-version: 1.18
         id: go
@@ -137,7 +137,7 @@ jobs:
     steps:
 
       - name: Set up Go 1.18
-        uses: actions/setup-go@v3
+        uses: actions/setup-go@v4
         with:
           go-version: 1.18
         id: go