Update deploy.yml -- updating cache version in hope it'll work

Author: lukasz-a-krol

.github/workflows/deploy.yml

@@ -47,7 +47,7 @@ jobs:
         cache: 'npm'
 
     - name: Cache Hugo & Node modules
-      uses: actions/cache@v2
+      uses: actions/cache@v3
       with:
         path: |
           ~/.hugo_cache