correct double quotes

Author: eloymg

actions/create-github-app-token/action.yaml

@@ -65,7 +65,9 @@ runs:
         curl -v -X POST "${VAULT_URL}/v1/auth/github-actions-oidc/login" \
         -H "Content-Type: application/json" \
         -H "Proxy-Authorization-Token: Bearer ${{ steps.get-github-jwt-token.outputs.github-jwt }}" \
-        -d '{"role": "${REPOSITORY_NAME}-${{ steps.normalize-workflow-name.outputs.ref_sha }}-${PERMISSION_SET}","jwt": "${{ steps.get-github-jwt-auth-token.outputs.github-jwt }}"}'
+        -d "{\"role\": \"${REPOSITORY_NAME}-${{ steps.normalize-workflow-name.outputs.ref_sha }}-${PERMISSION_SET}\",\"jwt\": \"${{ steps.get-github-jwt-auth-token.outputs.github-jwt }}\"}" \
+        | jq -r '.auth.client_token' > vault_token.txt
+        echo "vault_token=$(cat vault_token.txt)" >> $GITHUB_OUTPUT
 
     - name: Get Github Token
       id: generate-token