We're currently using peter-evans/create-pull-request v4.1.4 which is
based on the deprecated node16. This was fixed in v6.0.0, so let's
update to that commit.
macOS and the GitHub runners have python3 preinstalled.
We only needed to specify a version because aiohttp wasn't compatible
with 3.12, but that's no longer the case.
We're currently using peter-evans/create-pull-request v4.0.3 which is
still using the deprecated set-output command. This was fixed in v4.1.4,
so let's update to that version for now.
Once again GitHub Action runners have a minor Python 3 version
preinstalled that we want to upgrade, which will fail because that
versions does not seem to be Homebrew-based.
Enforcing an upgrade will fix the issue as Homebrew can overwrite the
files.
