chore: add debug logging to pinpoint hang location

Author: cocosheng-g

action.yml

@@ -234,6 +234,7 @@ runs:
       shell: 'bash'
       run: |-
         set -euo pipefail
+        echo "Starting Gemini CLI installation..."
 
         VERSION_INPUT="${GEMINI_CLI_VERSION:-latest}"
 
@@ -372,6 +373,7 @@ runs:
 
 
         # Set the captured response as a step output, supporting multiline
+        echo "Finished Gemini CLI execution."
         echo "gemini_response<<EOF" >> "${GITHUB_OUTPUT}"
         if [[ -n "${RESPONSE}" ]]; then
           echo "${RESPONSE}" >> "${GITHUB_OUTPUT}"