Add jobs to check go mod and go vet

.gitea/workflows/quality.yml

@@ -24,6 +24,45 @@ jobs:
             echo "has_go_changes=false" >> $GITHUB_OUTPUT
           fi
 
+  check-go-mod-tidy:
+    runs-on: ubuntu-latest
+    needs: check-changes
+    if: needs.check-changes.outputs.has_go_changes == 'true'
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Setup Go
+        uses: actions/setup-go@v4
+        with:
+          go-version: 1.26
+
+      - name: Check tidyness
+        run: |
+          go mod tidy
+          if [ -n "$(git status --porcelain go.mod go.sum)" ]; then
+            echo "go.mod or go.sum changed after go mod tidy; please run go mod tidy and commit the result" >&2
+            git diff go.mod go.sum >&2
+            exit 1
+          fi
+
+
+  check-go-vet:
+    runs-on: ubuntu-latest
+    needs: check-changes
+    if: needs.check-changes.outputs.has_go_changes == 'true'
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Setup Go
+        uses: actions/setup-go@v4
+        with:
+          go-version: 1.26
+
+      - name: Run go vet
+        run: go vet ./...
+
   run-tests:
     runs-on: ubuntu-latest
     needs: check-changes
@@ -35,7 +74,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v4
         with:
-          go-version: 1.25
+          go-version: 1.26
 
       - name: Run Unit tests
         run: |