Bump actions/cache from 1 to 4

Bumps [actions/cache](https://github.com/actions/cache) from 1 to 4.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@v1...v4)

---
updated-dependencies:
- dependency-name: actions/cache
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/Benchmark.yml

@@ -12,7 +12,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: julia-actions/setup-julia@latest
       - name: Cache artifacts
-        uses: actions/cache@v1
+        uses: actions/cache@v4
         env:
           cache-name: cache-artifacts
         with:

.github/workflows/UnitTest.yml

@@ -31,7 +31,7 @@ jobs:
       - run: julia --project -e 'using Pkg; Pkg.develop([PackageSpec(path="CheckedArithmeticCore")])'
 
       - name: Cache artifacts
-        uses: actions/cache@v1
+        uses: actions/cache@v4
         env:
           cache-name: cache-artifacts
         with: