.github: add CI job to check RPC bindings can be compiled

Signed-off-by: Anna Shaleva <anna@nspcc.ru>

.github/workflows/config/.rpcbindings_golangci.yml

@@ -0,0 +1,4 @@
+issues:
+  exclude-rules:
+    - linters:
+        - unused # RPC bindings are allowed to contain some unused convertors.

.github/workflows/go.yml

@@ -54,3 +54,24 @@ jobs:
 
       - name: Compile contracts
         run: make build
+
+  build_bindings:
+    name: Build RPC bindings
+    needs: build
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Set up Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: '1.18'
+
+      - name: Compile contracts and generate RPC bindings
+        run: make build
+
+      - name: Run linter on RPC bindings
+        uses: golangci/golangci-lint-action@v3
+        with:
+          version: latest
+          args: --config=.github/workflows/config/.rpcbindings_golangci.yml