command [git diff] exited with code 128. message: fatal: ambiguous argument 'get-diff-action/main...get-diff-action/pull/9/merge': unknown revision or path not in the working tree. Use '--' to separate paths from revisions, like this: 'git <command> [<revision>...] -- [<file>...]'

Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/checkout@v3, technote-space/get-diff-action@v6. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.

>> fatal: ambiguous argument 'get-diff-action/main...get-diff-action/pull/9/merge': unknown revision or path not in the working tree.

>> Use '--' to separate paths from revisions, like this: