Upgrade actions/Go versions in GitHub workflows (#35)

Author: metonym

.github/workflows/docker-publish.yaml

@@ -14,7 +14,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v5
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v2

.github/workflows/go-test.yaml

@@ -12,12 +12,12 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Set up Go
         uses: actions/setup-go@v5
         with:
-          go-version: 1.22
+          go-version: 1.25
           cache: true
 
       - name: Install dependencies

.github/workflows/mirror.yaml

@@ -11,7 +11,7 @@ jobs:
 
     steps:
       - name: Checkout private repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         if: ${{ env.ENABLE_MIRROR == 'true' }}
         with:
           # Must be set to avoid conflicting with the subsequent push