Update dependencies and switch to uv builds

[AndreFavotto]

• Standardize python builds: use uv everywhere instead of pip/micromamba.
  • Build time is now considerably faster for amd64, but slower for aarch64 (no wheels available - need to build from source). This may be fixed once Publish linux-aarch64 wheels on native ARM runners epics-base/p4p#226 (and related PRs) are merged.
  • epicsWS final image is also smaller - no more mamba environment overhead.
• Update base dependencies:
  • Remove plotly completely;
  • Update python, pyepics, websockets, fastapi and others to latest-ish (see diff for details).

[AndreFavotto]

Squashing for cleaner history