ci: Fix manual release workflow

[mtrezza]

New Pull Request Checklist

• [x] I am not disclosing a vulnerability.
• [x] I am creating this PR in reference to an issue.

Issue Description

Fix pre-release checks in release workflow not set up properly.

Closes: #881

Approach

Fix pre-release checks in workflow.

[parse-github-assistant[bot]]

I will reformat the title to use the proper commit message syntax.

[parse-github-assistant[bot]]

Thanks for opening this pull request!

• 🎉 We are excited about your hands-on contribution!

[mtrezza]

I've used the steps from the CI, since some seemed to be missing for flutter. I still haven't added this step:

- name: Run build_runner
   run: (cd packages/dart && dart run build_runner build --delete-conflicting-outputs)

Is this required in the release workflow?

[codecov[bot]]

Codecov Report

Patch and project coverage have no change.

Comparison is base (9f2d2d6) 38.68% compared to head (e849cd8) 38.68%.

:exclamation: Current head e849cd8 differs from pull request most recent head 9533b37. Consider uploading reports for the commit 9533b37 to get more accurate results

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #891 +/- ## ======================================= Coverage 38.68% 38.68% ======================================= Files 56 56 Lines 3278 3278 ======================================= Hits 1268 1268 Misses 2010 2010 ```

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[Nidal-Bakir]

No, it is not required