build(deps): bump bl in /scripts/caretaking/firebase-functions (#20481)

Bumps [bl](https://github.com/rvagg/bl) from 4.0.2 to 4.0.3.
- [Release notes](https://github.com/rvagg/bl/releases)
- [Commits](rvagg/bl@v4.0.2...v4.0.3)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
(cherry picked from commit 00d950e)

Author: dependabot[bot]

scripts/caretaking/firebase-functions/yarn.lock

@@ -611,9 +611,9 @@ binary@~0.3.0:
     chainsaw "~0.1.0"
 
 bl@^4.0.1:
-  version "4.0.2"
-  resolved "https://registry.yarnpkg.com/bl/-/bl-4.0.2.tgz#52b71e9088515d0606d9dd9cc7aa48dc1f98e73a"
-  integrity sha512-j4OH8f6Qg2bGuWfRiltT2HYGx0e1QcBTrK9KAHNMwMZdQnDZFk0ZSYIpADjYCB3U12nicC5tVJwSIhwOWjb4RQ==
+  version "4.0.3"
+  resolved "https://registry.yarnpkg.com/bl/-/bl-4.0.3.tgz#12d6287adc29080e22a705e5764b2a9522cdc489"
+  integrity sha512-fs4G6/Hu4/EE+F75J8DuN/0IpQqNjAdC7aEQv7Qt8MHGUH7Ckv2MwTEEeN9QehD0pfIDkMI1bkHYkKy7xHyKIg==
   dependencies:
     buffer "^5.5.0"
     inherits "^2.0.4"