[Bug] Release note generation is broken in release automation

[austinvazquez]

Description

As part of the v0.5.0 release, the release automation generated release notes which included every commit on main.

Steps to reproduce the bug

No response

Describe the results you expected

Expected the release notes to be the diff since the last release. i.e. commits since v0.4.1 release.

Host information

1. OS: N/A
2. Snapshotter Version: N/A
3. Containerd Version: N/A

Any additional context or information about the bug

No response