Update actions/cache action to v4.2.4 (#620)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/test.yml

@@ -82,7 +82,7 @@ jobs:
 
       - name: Cache Rust dependencies
         if: matrix.package == 'stellar' && matrix.variant == 'compile'
-        uses: actions/cache@5a3ec84eff668545956fd18022155c47e93e2684 #v4.2.3
+        uses: actions/cache@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
         with:
           path: |
             ~/.cargo/bin/