ci(audit-signatures): limit the check to the pinned npm version

Author: travi

.github/workflows/node-ci.yml

@@ -31,7 +31,6 @@ jobs:
           cache: npm
           node-version: ${{ matrix.node }}
       - run: npm clean-install
-      - run: npm audit signatures
       - run: npm test
   verify:
     runs-on: ubuntu-latest
@@ -43,6 +42,7 @@ jobs:
           node-version-file: .nvmrc
           cache: npm
       - run: npm clean-install
+      - run: corepack npm audit signatures
       - run: npm test
       - uses: codecov/codecov-action@b9fd7d16f6d7d1b5d2bec1a2887e65ceed900238 # v4.6.0
   release: