Update pipdeptree version to remove dependency on pip

[jonbiemond]

Description

Increase the pipdeptree requirement version to be ">=2.23.2".
This release of pipdeptree removes all references to pip.
tox-dev/pipdeptree#402
The deploy command, which uses pipdeptree, may now be used in environments without pip.

Related Issues

Fixes #2203

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[rudolfix]

@jonbiemond thanks for the PR! I assume you tried to upgrade pipdeptree and the deploy command is still working? There were quite significant changes in the internal object model in the past. That's why our version is locked.

In your PR, the lockfile is outdated. Please try to:

1. merge the current devel. We just added 3.13 support so actual lockfile changes. This will avoid merge conflict.
2. update the lock: poetry lock --no-updates (do make dev before to create dev env).

[jonbiemond]

@rudolfix Thanks for the review!

• ✅ Place changes on top of devel
• ✅ Update poetry.lock
• ✅ Confirm no new tests failing
• ‼️ Manually run deploy command with the latest pipdeptree

Unfortunately, updating pipdeptree introduces breaking changes.