ci: bump actions/cache from 4 to 5 (#843)

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

Author: dependabot[bot]

.github/workflows/gitleaks.yml

@@ -24,7 +24,7 @@ jobs:
 
       - name: Cache gitleaks archive
         id: cache_gitleaks
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: /usr/local/bin/gitleaks
           key: gitleaks-${{ env.PLATFORM }}-${{ env.GITLEAKS_VERSION }}

.github/workflows/tests.yml

@@ -67,7 +67,7 @@ jobs:
         with:
           python-version: '3.10'
 
-      - uses: actions/cache@v4
+      - uses: actions/cache@v5
         name: Configure pip cache
         id: pip-cache
         with: