Upgrade: [CI] bump the actions group with 9 updates (#11881)

Bumps the actions group with 9 updates:

| Package | From | To |
| --- | --- | --- |
| [actions/checkout](https://github.com/actions/checkout) | `3` | `4` |
| [actions/cache](https://github.com/actions/cache) | `3` | `4` |
| [actions/github-script](https://github.com/actions/github-script) | `6` | `7` |
| [OpenTTD/actions](https://github.com/openttd/actions) | `2` | `5` |
| [github/codeql-action](https://github.com/github/codeql-action) | `2` | `3` |
| [actions/download-artifact](https://github.com/actions/download-artifact) | `3` | `4` |
| [actions/upload-artifact](https://github.com/actions/upload-artifact) | `3` | `4` |
| [tibdex/github-app-token](https://github.com/tibdex/github-app-token) | `1` | `2` |
| [peter-evans/repository-dispatch](https://github.com/peter-evans/repository-dispatch) | `2` | `3` |

Updates `actions/checkout` from 3 to 4
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v3...v4)

Updates `actions/cache` from 3 to 4
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](https://github.com/actions/cache/compare/v3...v4)

Updates `actions/github-script` from 6 to 7
- [Release notes](https://github.com/actions/github-script/releases)
- [Commits](https://github.com/actions/github-script/compare/v6...v7)

Updates `OpenTTD/actions` from 2 to 5
- [Release notes](https://github.com/openttd/actions/releases)
- [Commits](https://github.com/openttd/actions/compare/v2...v5)

Updates `github/codeql-action` from 2 to 3
- [Release notes](https://github.com/github/codeql-action/releases)
- [Changelog](https://github.com/github/codeql-action/blob/main/CHANGELOG.md)
- [Commits](https://github.com/github/codeql-action/compare/v2...v3)

Updates `actions/download-artifact` from 3 to 4
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](https://github.com/actions/download-artifact/compare/v3...v4)

Updates `actions/upload-artifact` from 3 to 4
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](https://github.com/actions/upload-artifact/compare/v3...v4)

Updates `tibdex/github-app-token` from 1 to 2
- [Release notes](https://github.com/tibdex/github-app-token/releases)
- [Commits](https://github.com/tibdex/github-app-token/compare/v1...v2)

Updates `peter-evans/repository-dispatch` from 2 to 3
- [Release notes](https://github.com/peter-evans/repository-dispatch/releases)
- [Commits](https://github.com/peter-evans/repository-dispatch/compare/v2...v3)

---
updated-dependencies:
- dependency-name: actions/checkout
dependency-type: direct:production
update-type: version-update:semver-major
dependency-group: actions
- dependency-name: actions/cache
dependency-type: direct:production
update-type: version-update:semver-major
dependency-group: actions
- dependency-name: actions/github-script
dependency-type: direct:production
update-type: version-update:semver-major
dependency-group: actions
- dependency-name: OpenTTD/actions
dependency-type: direct:production
update-type: version-update:semver-major
dependency-group: actions
- dependency-name: github/codeql-action
dependency-type: direct:production
update-type: version-update:semver-major
dependency-group: actions
- dependency-name: actions/download-artifact
dependency-type: direct:production
update-type: version-update:semver-major
dependency-group: actions
- dependency-name: actions/upload-artifact
dependency-type: direct:production
update-type: version-update:semver-major
dependency-group: actions
- dependency-name: tibdex/github-app-token
dependency-type: direct:production
update-type: version-update:semver-major
dependency-group: actions
- dependency-name: peter-evans/repository-dispatch
dependency-type: direct:production
update-type: version-update:semver-major
dependency-group: actions
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Fix: [CI] don't share Rust cache between legacy and generic linux (#11848)

The resulting binaries of generic can't run on legacy.

Change: [CI] upgrade linux-generic to libc 2.28 and introduce linux-legacy (#11792)

linux-legacy is the old variant, which uses libc 2.17, released in 2012.
linux-generic is now upgraded to libc 2.28, released in 2018.