Merge pull request #539 from sigstore/renovate/actions-setup-go-4.x

Update actions/setup-go action to v4

Author: loosebazooka

.github/workflows/ci.yaml

@@ -43,7 +43,7 @@ jobs:
         java-version: ${{ matrix.java-version }}
         distribution: 'temurin'
     - name: Setup Go environment
-      uses: actions/setup-go@6edd4406fa81c3da01a34fa6f6343087c207a568 # tag=v3.5.0
+      uses: actions/setup-go@93397bea11091df50f3d7e59dc26a7711a8bcfbe # v4.1.0
       with:
         go-version: '1.19.x'