Update CI.yml

cache version v3

Author: mdbergmann

.github/workflows/CI.yml

@@ -32,7 +32,7 @@ jobs:
 
     - name: cache .roswell
       id: cache-dot-roswell
-      uses: actions/cache@v1
+      uses: actions/cache@v3
       with:
         path: ~/.roswell
         key: ${{ runner.os }}-dot-roswell-${{ matrix.lisp }}-${{ hashFiles('**/*.asd') }}