CI on fuzzing: make sure Clojure is available (due to CLJS)

.github/workflows/fuzzing.yml

@@ -18,6 +18,10 @@ jobs:
     - uses: actions/checkout@v3
     - name: Prepare front-end environment
       uses: ./.github/actions/prepare-frontend
+    - name: Prepare back-end environment
+      uses: ./.github/actions/prepare-backend
+      with:
+        m2-cache-key: 'cljs'
     - run: yarn test-unit frontend/test/metabase/lib/expressions/fuzz.tokenizer.unit.spec.js
       env:
         MB_FUZZ: 1
@@ -30,6 +34,10 @@ jobs:
     - uses: actions/checkout@v3
     - name: Prepare front-end environment
       uses: ./.github/actions/prepare-frontend
+    - name: Prepare back-end environment
+      uses: ./.github/actions/prepare-backend
+      with:
+        m2-cache-key: 'cljs'
     - run: yarn test-unit frontend/test/metabase/lib/expressions/fuzz.recursive-parser.unit.spec.js
       env:
         MB_FUZZ: 1