Bump julia-actions/julia-runtest from 1.11.2 to 1.11.4

Bumps [julia-actions/julia-runtest](https://github.com/julia-actions/julia-runtest) from 1.11.2 to 1.11.4.
- [Release notes](https://github.com/julia-actions/julia-runtest/releases)
- [Commits](julia-actions/julia-runtest@v1.11.2...v1.11.4)

---
updated-dependencies:
- dependency-name: julia-actions/julia-runtest
  dependency-version: 1.11.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/Downgrade.yml

@@ -29,7 +29,7 @@ jobs:
         with:
           skip: Pkg,TOML
       - uses: julia-actions/[email protected]
-      - uses: julia-actions/[email protected].2
+      - uses: julia-actions/[email protected].4
         with:
           ALLOW_RERESOLVE: false
         env: