chore(deps): update python:3.10-slim-bookworm docker digest to cb15039

[oep-renovate]

This PR contains the following updates:

Package	Type	Update	Change
python	stage	digest	6e343da → cb15039

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[JiwaniZakir]

The digest update in dev_tools/builder_images/python-builder/Dockerfile moves from sha256:6e343dac... to sha256:a02d127a... for python:3.10-slim-bookworm, which is the correct way to pin a base image to a specific immutable layer rather than relying on a mutable tag. It's worth confirming what changed in this new digest — whether it contains OS-level security patches or library updates — since silent regressions in base image updates (e.g., updated glibc or openssl versions) can occasionally break native extension builds. If there's a CI pipeline that builds and tests this image, verifying those results before merging is important. Additionally, since python:3.10 reached end-of-life in October 2024, it may be worth tracking a migration path to 3.11 or 3.12 to avoid accumulating security debt that upstream patches can no longer address.

[oep-renovate]

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