v3.6.0

ci: use free hosted runner for install tests Erik Osterman (Cloud Posse) (@osterman) (#121)

## Summary

Move the public repository’s remaining RunsOn install job to ubuntu-latest. Standard GitHub-hosted runners are free for public repositories.

The hosted runner exposed pre-existing default-branch drift that the old RunsOn dependency cache had masked: package.json no longer matched yarn.lock, ESLint 10 was incompatible with the repository’s legacy ESLint configuration/plugins, and the checked-in dist/ bundle was stale. This PR reconciles both lockfiles, restores the compatible ESLint 8.57.1 line, and commits the reproducible Node 24 action bundle.

Validation

• yarn --frozen-lockfile --prefer-offline
• yarn lint:check
• yarn format:check
• yarn test:coverage: 63 tests pass; 96.61% line and 96.92% statement coverage
• yarn clean && yarn build && yarn build:wrapper
• generated dist/ verification passes
• actionlint passes
• no RunsOn routing labels remain in test-install.yaml

Expected savings: approximately $25–50/month.