bump minimum python to 39

[kod-kristoff]

• ci: add uv based workflows
• ci: use env namespace
• chore: add uv based Makefile
• ci: remove unused actions
• ci(test): fix python-version
• ci: bump uv to 0.4.18
• ci: do not use hashes from workflow file
• ci: set python 3.9 as minimum version
• ci: also test for python 3.13
• ci: also test for python 3.14-dev
• chore: remove old Makefiles and CI
• chore: adapt Makefile
• ci: rename release workflow
• chore: migrate dependencies from pdm

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 92.00000% with 2 lines in your changes missing coverage. Please review.

Project coverage is 97.7%. Comparing base (d1e1eca) to head (5097c75).

Files with missing lines	Patch %	Lines
...sbx_ocr_correction_viklofg_sweocr/ocr_corrector.py	91.3%	2 Missing ⚠️

Additional details and impacted files

Files with missing lines	Coverage Δ
.../src/sbx_ocr_correction_viklofg_sweocr/__init__.py	100.0% <100.0%> (ø)
...c/sbx_ocr_correction_viklofg_sweocr/annotations.py	100.0% <100.0%> (ø)
...sbx_ocr_correction_viklofg_sweocr/ocr_corrector.py	96.7% <91.3%> (-1.0%)	⬇️

---- 🚨 Try these New Features:

• Flaky Tests Detection - Detect and resolve failed and flaky tests