Migrate tools to Python 3.14

[MendryX4]

This PR migrates the openmaptiles-tools codebase and Docker environment from Python 3.9 to Python 3.14. The tool versions have been bumped accordingly.

To ensure the migration didn't break the pipeline, the following local tests were successfully executed:

• Passed all unit and integration tests via make test using the rebuilt Docker image.
• Ran an end-to-end tile generation using quickstart.sh. The data was successfully downloaded, imported into PostGIS, processed by the SQL scripts, and a valid tiles.mbtiles file was generated without any errors or warnings.

[TomPohys]

Awesome! Thanks a lot. It looks good!

[TomPohys]

Suggested change

	__version__ = '8.0.0'
	__version__ = '0.0.0'

Please keep just a 0.0.0 so we do not have dependency before release. There is automatic replacement based on tag:

openmaptiles-tools/.github/workflows/push.yml

Line 46 in a7080f2

sed -i -e 's/^__version__ = '"'"'[0-9]\+[.][0-9]\+[.][0-9]\+'"'"'/__version__ = '"'${BASH_REMATCH[1]}.${BASH_REMATCH[2]}.${BASH_REMATCH[3]}'"'/g' openmaptiles/__init__.py