chore: bump version to 1.1.0

[RamboWasReal]

Prepares the 1.1.0 release after #7. Version bump only (package.json + finalize CHANGELOG.md). No npm publish, no git tag, and no GitHub Release in this PR — those happen after this lands on main.

Gleam.podspec reads the version from package.json; it was not hardcoded.

GitHub Release notes (paste for v1.1.0)

## Added

- Accessibility: set `accessibilityState.busy` automatically while `loading={true}`
- Reduce Motion: render a static `baseColor` skeleton when the system setting is enabled (no shimmer animation)
- DEV warning when `loading` is omitted but `children` are present (defaults to `true`)
- Example app: Reduce Motion banner, wrapped Lines demo, accessibility labels

## Changed

- `GleamView.Line` nested inside `View` or Fragment wrappers is detected on the first render — stable ref, no NativeGleamView→View flip

## Fixed

- CI: add missing CocoaPods cache step referenced by the iOS build job
- CI: always run `pod install` after cache restore (codegen needs fresh `build/generated`)
- CI: stop caching `vendor/bundle` (stale gems broke Ruby 3.4 pod install)
- Example: add `nkf` and `base64` gems for Ruby 3.4 / CocoaPods compatibility
- `GleamView.Line` detection no longer walks custom component `children` (avoids disabling the parent shimmer when a nested `GleamView` owns those Lines)