tools: use a shallow clone of the npm/cli repository

Use a shallow clone instead of cloning the whole repository.

PR-URL: #38463
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: Richard Lau <[email protected]>
Reviewed-By: Darshan Sen <[email protected]>
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Trivikram Kamat <[email protected]>

Author: lpinca

tools/update-npm.sh

@@ -24,12 +24,11 @@ mkdir -p "$WORKSPACE"
 
 cd "$WORKSPACE"
 
-git clone [email protected]:npm/cli.git
+git clone --depth=1 --branch="v$NPM_VERSION" [email protected]:npm/cli.git
 cd cli
 
 echo "Preparing npm release"
 
-git checkout v"$NPM_VERSION"
 make
 make release