Use Go container for Gitea workflows

.gitea/workflows/ci.yml

@@ -9,15 +9,12 @@ jobs:
   lint-test:
     name: Lint and test
     runs-on: ubuntu-latest
+    container:
+      image: golang:1.24-bookworm
     steps:
       - name: Checkout
         uses: actions/checkout@v4
 
-      - name: Set up Go
-        uses: actions/setup-go@v5
-        with:
-          go-version-file: go.mod
-
       - name: Check formatting
         run: |
           files="$(gofmt -l .)"

.gitea/workflows/publish.yml

@@ -9,15 +9,12 @@ jobs:
   build-push:
     name: Test, build, and push image
     runs-on: ubuntu-latest
+    container:
+      image: golang:1.24-bookworm
     steps:
       - name: Checkout
         uses: actions/checkout@v4
 
-      - name: Set up Go
-        uses: actions/setup-go@v5
-        with:
-          go-version-file: go.mod
-
       - name: Check formatting
         run: |
           files="$(gofmt -l .)"
@@ -45,7 +42,7 @@ jobs:
 
       - name: Log in to registry
         run: |
-          echo "${{ secrets.REGISTRY_PASSWORD }}" | docker login k3crpi.jumpingcrab.com \
+          echo "${{ secrets.REGISTRY_PASSWORD }}" | docker login k3crpi.jumpingcrab.com:5000 \
             --username "${{ secrets.REGISTRY_USERNAME }}" \
             --password-stdin