fix: support tag context

[rafaelsvieira]

Workflows triggred by a tag are getting a error when execute git switch command. To solve that error this PR is adding the --detach parameter to change the git context and look at the commit instead of branch reference.

Tests:

1. Workflow triggered by a tag before the fix.
2. Workflow triggered by a tag after the fix.
3. Workflow triggered by a branch before the fix. (same behaviour)
4. Workflow triggered by a branch after the fix. (same behaviour)