Update prepare-release.yml to use GITHUB_TOKEN

[kraenhansen]

Description

Fixes an issue caused by SSO being enforced.

TODO

• Changelog entry
• Tests (if applicable)

[coveralls-official]

Pull Request Test Coverage Report for Build 8138737311

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 80.888%

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Totals
Change from base Build 8047867358:	0.0%
Covered Lines:	6663
Relevant Lines:	8093

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💛 - Coveralls

[kraenhansen]

Drafting as it seems the GITHUB_TOKEN cannot trigger workflows: https://docs.github.com/en/actions/using-workflows/triggering-a-workflow#triggering-a-workflow-from-a-workflow

If you do want to trigger a workflow from within a workflow run, you can use a GitHub App installation access token or a personal access token instead of GITHUB_TOKEN to trigger events that require a token.