Dependabot update: Bump coverallsapp/github-action

Dependabot update: Bump coverallsapp/github-action

CLA: trivial

(deps): Bump coverallsapp/github-action

Bumps [coverallsapp/github-action](https://github.com/coverallsapp/github-action) from 2.2.3 to 2.3.0.
- [Release notes](https://github.com/coverallsapp/github-action/releases)
- [Commits](https://github.com/coverallsapp/github-action/compare/v2.2.3...v2.3.0)

---
updated-dependencies:
- dependency-name: coverallsapp/github-action
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Reviewed-by: Tom Cosgrove <tom.cosgrove@arm.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/24350)