Update publish-cocoapods.yml

Author: SomeRandomiOSDev

.github/workflows/publish-cocoapods.yml

@@ -14,6 +14,11 @@ jobs:
     - name: Checkout Code
       uses: actions/checkout@v2
 
-    - name: Publish
+    - name: Setup CocoaPods
+      uses: maxim-lobanov/setup-cocoapods@v1
+      with:
+        version: latest
+
+    - name: Publish CocoaPod
       run: |
         pod trunk push Half.podspec