docs(contributors): fix typo

Author: uniqueg

docs/guides/guide-contributor/workflow.md

@@ -166,7 +166,7 @@ Please follow these rules for your commit messages / PR titles:
 - Only use the types listed in the table below; choose the type according to the
   predominant reason for the change
 - Only use types `feat`, `fix`, `perf`, `refactor` and `style` for changes in
-  in package/production code; use the dedicated types for all build-, CI-,
+  package/production code; use the dedicated types for all build-, CI-,
   documentation- or test-related changes
 - Indicating a scope is optional; it is only necessary if scopes are generally
   used in the repository you are working on