doc: fix commit message using test instead of deps

PR-URL: https://github.com/nodejs/node/pull/46313
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Darshan Sen <raisinten@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

.github/workflows/tools.yml

@@ -78,8 +78,8 @@ jobs:
                 ./tools/update-undici.sh
               fi
           - id: postject
-            subsystem: deps
-            label: dependencies
+            subsystem: test
+            label: test
             run: |
               NEW_VERSION=$(npm view postject dist-tags.latest)
               CURRENT_VERSION=$(node -p "require('./test/fixtures/postject-copy/node_modules/postject/package.json').version")

doc/contributing/maintaining-postject.md

@@ -12,12 +12,12 @@ Check that Node.js still builds and tests.
 
 ## Committing postject
 
-Add postject: `git add --all test/fixtures/postject-copy`
+1. Add postject: `git add --all test/fixtures/postject-copy`.
+2. Commit the changes: `git commit`.
+3. Add a message like:
 
-Commit the changes with a message like:
+   ```text
+   test: update postject to <version>
 
-```text
-deps: update postject to 1.0.0-alpha.4
-
-Updated as described in doc/contributing/maintaining-postject.md.
-```
+   Updated as described in doc/contributing/maintaining-postject.md.
+   ```