Fix validate coins GitHub Action

The validate coins action was failing silently because of the coins_ci.json file location changing to the assets folder

.github/workflows/validate_coins.yml

@@ -31,7 +31,12 @@ jobs:
       - name: Get coins repo commit
         id: coins
         run: |
-          echo "hash=$(jq -r .coins_repo_commit coins_ci.json)" >> $GITHUB_ENV
+          export commit_hash="$(jq -r .bundled_coins_repo_commit assets/coins_ci.json)"
+          if [ -z "${commit_hash}" ]; then
+            echo "No coins repo commit found in coins_ci.json"
+            exit 1
+          fi
+          echo "hash=${commit_hash}" >> $GITHUB_ENV
         shell: bash
 
       - name: Get coins asset files