fix(ci): remove github action dependency from gitea workflow

.gitea/workflows/ci.yml

@@ -11,14 +11,11 @@ jobs:
   verify:
     runs-on: ubuntu-latest
     steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-
-      - name: Setup Go
-        uses: actions/setup-go@v5
-        with:
-          go-version-file: go.mod
-          cache: true
+      - name: Verify Go toolchain
+        run: |
+          go version
+          pwd
+          test -f go.mod
 
       - name: Verify formatting
         run: |