actions: bump actions/cache in the actions-dependencies group

Bumps the actions-dependencies group with 1 update: [actions/cache](https://github.com/actions/cache).


Updates `actions/cache` from 4 to 5
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@v4...v5)

---
updated-dependencies:
- dependency-name: actions/cache
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions-dependencies
...

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

Author: dependabot[bot]

.github/workflows/CI-windows.yml

@@ -105,7 +105,7 @@ jobs:
 
       - name: Cache PCRE
         id: cache-pcre
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: |
             externals\pcre.h

.github/workflows/format.yml

@@ -29,7 +29,7 @@ jobs:
           persist-credentials: false
 
       - name: Cache uncrustify
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         id: cache-uncrustify
         with:
           path: |

.github/workflows/scriptcheck.yml

@@ -31,7 +31,7 @@ jobs:
           key: ${{ github.workflow }}-${{ runner.os }}
 
       - name: Cache Cppcheck
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: cppcheck
           key: ${{ runner.os }}-scriptcheck-cppcheck-${{ github.sha }}
@@ -62,7 +62,7 @@ jobs:
 
       # TODO: bailout on error
       - name: Restore Cppcheck
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: cppcheck
           key: ${{ runner.os }}-scriptcheck-cppcheck-${{ github.sha }}