Bump actions/cache from 3 to 4 (#45)

Bumps [actions/cache](https://github.com/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](actions/cache@v3...v4)

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

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

Author: dependabot[bot]

.github/workflows/coding-standards.yml

@@ -36,7 +36,7 @@ jobs:
           key: "extcache-v1"
 
       - name: Cache extensions
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ${{ steps.extcache.outputs.dir }}
           key: ${{ steps.extcache.outputs.key }}

.github/workflows/static-analysis.yml

@@ -36,7 +36,7 @@ jobs:
           key: "extcache-v1"
 
       - name: Cache extensions
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ${{ steps.extcache.outputs.dir }}
           key: ${{ steps.extcache.outputs.key }}

.github/workflows/tests.yml

@@ -56,7 +56,7 @@ jobs:
           key: "extcache-v1"
 
       - name: Cache extensions
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ${{ steps.extcache.outputs.dir }}
           key: ${{ steps.extcache.outputs.key }}