build: fix CQ after latest ncu release

The new behavior of node-core-utils (which fetches the merge commit
instead of fetching the patch files) requires the whole repo to be
cloned, instead of just the last commit.

PR-URL: nodejs#35468
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Beth Griggs <Bethany.Griggs@uk.ibm.com>

.github/workflows/commit-queue.yml

@@ -21,6 +21,9 @@ jobs:
     steps:
       - uses: actions/checkout@v2
         with:
+          # Needs the whole git history for ncu to work
+          # See https://github.com/nodejs/node-core-utils/pull/486
+          fetch-depth: 0
           # A personal token is required because pushing with GITHUB_TOKEN will
           # prevent commits from running CI after they land on master. It needs
           # to be set here because `checkout` configures GitHub authentication