Upgrade support to TF 2.10

[marcan]

Upgrade to TF 2.10

• I read contributing guideline
• I didn't find a similar pull request already open.
• My PR is related to Spleeter only, not a derivative product (such as Webapplication, or GUI provided by others)

Description

This is the oldest version with arm64 builds, enabling spleeter to work on arm64 Linux. We need to pin numpy to <2.0 to avoid incompatibilities, but we also need new enough versions for the TF 2.10 builds to work. This in turn requires dropping Python 3.7 support (which is very old at this point).

This also upgrades mypy to 0.991 since the old version runs into a broken version of the typed-ast dependency on Python 3.10.

How this patch was tested

Tested on an ARM64 M1 Pro MacBook Pro running Fedora Asahi Remix in a Python3.10 venv, running the tests with poetry run pytest tests/ as well as a simple usage test of spleeter.

• I implemented unit test whicn ran successfully using poetry run pytest tests/
• Code has been formatted using poetry run black spleeter
• Imports has been formatted using `poetry run isort spleeter``