Bump julia-actions/julia-format from 3 to 4

Bumps [julia-actions/julia-format](https://github.com/julia-actions/julia-format) from 3 to 4.
- [Release notes](https://github.com/julia-actions/julia-format/releases)
- [Commits](julia-actions/julia-format@v3...v4)

---
updated-dependencies:
- dependency-name: julia-actions/julia-format
  dependency-version: '4'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/JuliaFormatter.yml

@@ -14,6 +14,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: julia-actions/julia-format@v3
+      - uses: julia-actions/julia-format@v4
         with:
           version: '1'