Change depricated cask installation method

.github/workflows/build.yaml

@@ -21,8 +21,9 @@ jobs:
     - uses: purcell/setup-emacs@master
       with:
         version: ${{ matrix.emacs_version }}
-    - run: curl -fsSL https://raw.githubusercontent.com/cask/cask/master/go | python
-    - run: echo "/home/runner/.cask/bin" >> $GITHUB_PATH
+    - uses: conao3/setup-cask@master
+      with:
+        version: snapshot
     - run: cask install
     - run: make compile
     - run: make lint