fix: remove mention of step 3b workflow

Removed enabling of 'Step 3b' in the workflow.

Author: FidelusAleksander

.github/workflows/2-first-introduction.yml

@@ -131,6 +131,5 @@ jobs:
         run: |
           gh workflow disable "${{github.workflow}}"
           gh workflow enable "Step 3"
-          gh workflow enable "Step 3b"
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}