ci: bump actions/cache from 3 to 4

Author: Michael-J-Ward

.github/workflows/test.yaml

@@ -63,7 +63,7 @@ jobs:
           python-version: ${{ matrix.python-version }}
 
       - name: Cache Cargo
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ~/.cargo
           key: cargo-cache-${{ steps.rust-toolchain.outputs.rustc_hash }}-${{ hashFiles('Cargo.lock') }}
@@ -114,7 +114,7 @@ jobs:
 
       - name: Cache the generated dataset
         id: cache-tpch-dataset
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: benchmarks/tpch/data
           key: tpch-data-2.18.0