Bump GHA actions

I got an email stating upload-artifact@v3 will go offline soon

.github/workflows/ci.yml

@@ -20,7 +20,7 @@ jobs:
     steps:
     - uses: actions/checkout@v4
     - name: REUSE Compliance Check
-      uses: fsfe/reuse-action@v2
+      uses: fsfe/reuse-action@v4
 
 
   rust-checks:
@@ -96,7 +96,7 @@ jobs:
           cd clash-vexriscv-sim; sh bundle_test_binaries.sh
 
       - name: Upload Integration Test Binaries
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: vexriscv-test-binaries
           path: clash-vexriscv-sim/vexriscv-test-binaries.tar
@@ -129,7 +129,7 @@ jobs:
           cabal update
           cabal freeze
       - name: Cache
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: |
             ~/.local/state/cabal/store/