fixed branch name for release workflow

[bluemonk3y]

Labels

Mark your PRs with the following labels, as appropriate:

• breaking-change: if the PR includes a breaking change
• enhancement: if the PR enables / completes a new feature
• bug: if the PR fixes a bug.
• dependencies: if the PR updates dependencies
• documentation **: If the PR doc-only changes
• subtask **: If the PR is only part of a new feature. Ensure final PR is marked with enhancement.
• chore **: a maintenance / non-feature released task of no interest to users.

Labels marked with ** are excluded from release notes

Reviewer checklist

• Read the contributing guide
• PR should be motivated, i.e. what does it fix, why, and if relevant, how
• Ensure relevant issues are linked (description should include text like "Fixes #")
• Ensure any appropriate documentation has been added or amended