Revert "Release: v0.1.20" (#450)

Reverts #449

Requires github actions bot to trigger the release
https://github.com/google-github-actions/run-gemini-cli/actions/runs/21486000478.

Author: spencer426

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "run-gemini-cli",
-  "version": "0.1.20",
+  "version": "0.1.19",
   "description": "This works with our versioning tools, this is NOT an NPM repo",
   "scripts": {
     "build": "echo \"No build required for composite action\"",