fix(ci): use --no-frozen-lockfile in install E2E test

Shallow-cloned repos may have lockfile config mismatches (e.g.,
pnpm/pnpm's patchedDependencies drift), causing frozen install
to fail. Use --no-frozen-lockfile since we're testing install
functionality, not lockfile integrity.

Author: fengmk2

.github/workflows/ci.yml

@@ -715,7 +715,7 @@ jobs:
             fi
             git clone --depth 1 "https://github.com/$repo.git" "$RUNNER_TEMP/$dir_name"
             cd "$RUNNER_TEMP/$dir_name"
-            vp install
+            vp install --no-frozen-lockfile
             # run again to show install cache increase by time
             time vp install
             echo "✓ Successfully installed dependencies for $repo"