[#1016] forgejo: Add gopls check step

Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>

.forgejo/workflows/tests.yml

@@ -71,3 +71,21 @@ jobs:
 
       - name: Run staticcheck
         run: make staticcheck-run
+
+  gopls:
+    name: gopls check
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Set up Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: '1.21'
+          cache: true
+
+      - name: Install gopls
+        run: make gopls-install
+
+      - name: Run gopls
+        run: make gopls-run