Add govulncheck

Add govulncheck

Author: sashamelentyev

.github/workflows/ci.yaml

@@ -33,3 +33,8 @@ jobs:
         with:
           version: latest
           args: --timeout 5m
+
+      - name: Install govulncheck
+        run: go install golang.org/x/vuln/cmd/govulncheck@latest
+      - name: Run govulncheck
+        run: govulncheck ./...