update actions/cache version to fix CI

Author: ColBeanz

.github/workflows/ci.yml

@@ -15,7 +15,7 @@ jobs:
       - uses: actions/checkout@v2
 
       - name: Cache node modules
-        uses: actions/cache@v1
+        uses: actions/cache@v3
         env:
           cache-name: cronofy-node
         with: