doc: note that linting is required in releases.md

Refs: #18769

PR-URL: #18776
Refs: #18769
Reviewed-By: Matheus Marchini <matheus@sthima.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: James M Snell <jasnell@gmail.com>

doc/releases.md

@@ -397,6 +397,9 @@ Cherry-pick the release commit to `master`. After cherry-picking, edit
 `src/node_version.h` to ensure the version macros contain whatever values were
 previously on `master`. `NODE_VERSION_IS_RELEASE` should be `0`.
 
+Run `make lint-md-build; make lint` before pushing to `master`, to make sure the
+Changelog formatting passes the lint rules on `master`.
+
 ### 12. Promote and Sign the Release Builds
 
 **It is important that the same individual who signed the release tag be the one