Update actions/setup-node action to v7 (#26)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/test-testdata.yml

@@ -24,7 +24,7 @@ jobs:
       with:
         persist-credentials: false
 
-    - uses: actions/setup-node@249970729cb0ef3589644e2896645e5dc5ba9c38 # v6.5.0
+    - uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
       with:
         cache: 'npm'
         cache-dependency-path: testdata/package-lock.json