fix: silence ty 0.0.87 override checks on instrument bootstrap_config

[lesnik512]

Fixes #283.

The scheduled dependency check picked up ty 0.0.87, which turns on invalid-mutable-override by default. Every framework instrument narrows bootstrap_config from its base instrument's config type, for example FastAPIConfig over LoggingConfig. That gives 25 errors.

This PR is the quick fix: one # ty: ignore[invalid-mutable-override] per line. The proper fix is to make the instruments generic over their config type. That touches every instrument, so it will get its own issue.

It also widens the build backend pin from uv_build<0.12 to uv_build>=0.11,<1.0, like the other repos. uv 0.13 warns about the old pin.

Locally with ty 0.0.87, just lint-ci is clean and just test-ci passes (362 passed, 100% coverage).