Update python Docker tag to v3.14

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
python	final	minor	3.12-slim -> 3.14-slim
python	stage	minor	3.12 -> 3.14

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[LucasSymons]

Suggest not merging this yet , sgqlc doesn't support 3.13 yet. Their latest version 16.4 still has a requirement for Python > 3.8 and < 3.13. Weirdly it worked with 16.3, so we have a path forward if they don't update with support for python 3.13

Just had this issue in my local and wanted to put the info somewhere :)