Updated Scrapy release procedure (markdown)

Scrapy-release-procedure.md

@@ -145,12 +145,6 @@ If you’ve released a patch version, you should merge its branch into the main
 
 ## Upgrade CI packages
 
-To avoid the risk of CI suddenly failing and confusing pull request authors, we freeze some CI packages:
-
-- bandit
-- flake8
-- pylint
-- pytest-cov
-- pytest-flake8
+To avoid the risk of CI suddenly failing and confusing pull request authors, we freeze some CI packages in `tox.ini` and `tests/requirements.txt`.
 
 Right after a major or minor release would be a good time to update those packages, solving or allow-listing any issue raised by their new versions.