feat(ci): Better dependabot grouping

[gregfurman]

Description

Optimizes dependabot groupings to include all deps within the cli/template sections, which need to be bumped to the latest hatchet sdk version.

Also, we need to support uv ecosystems and tighten up unnecessary groupings.

Type of change

• CI (any automation pipeline changes)

What's Changed

• Groups together all SDK example updates into a single PR using multi-ecosystem groupings.
• Ensures we also update uv lockfile for python version bumps.
• Removes refs to non-existent directories & ensures we only target sdks/**/examples instead of the autogenerated examples/**
• Correctly updates all cli template types for each ecosystem (including bun, uv, etc.)

[vercel]

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