chore: use better name on nodejs commits

Currently, the name: `npm-robot` is being used in nodejs changelogs as
the atttribution author name for npm-update commits. This makes it so
that entries in the changelog referring to our updates reads like:

```
upgrade npm to 7.18.1 (npm-robot) #39065
```

This change makes it so that the name used in commits is `npm team`,
this way the changelogs entry should read instead as:

```
upgrade npm to 7.18.1 (npm team) #39065
```

Ref: https://nodejs.org/en/blog/release/v16.4.0/

PR-URL: #3541
Credit: @ruyadorno
Close: #3541
Reviewed-by: @wraithgar, @targos, @BethGriggs

.github/workflows/create-cli-deps-pr.yml

@@ -52,7 +52,7 @@ jobs:
             base_branch="v14.x-staging"
           fi 
 
-          git config user.name "npm-robot"
+          git config user.name "npm team"
           git config user.email "ops+robot@npmjs.com"
           git checkout -b "npm-$npm_tag"