fix: failure on missing CHANGELOG.md file when preparing release PR #85
Description
When the CHANGELOG.md file is missing, the tool fails to create it.
See https://gitlab.com/hetznercloud/fleeting-plugin-hetzner/-/jobs/8110434045
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When the CHANGELOG.md file is missing, the tool fails to create it.
See https://gitlab.com/hetznercloud/fleeting-plugin-hetzner/-/jobs/8110434045