ci: remove v3 tagging, assumed

.github/ISSUE_TEMPLATE/1.bug_report_v3.yml

@@ -1,6 +1,6 @@
 name: Functionality Bug
 description: '[REPRODUCTION REQUIRED] - Create a bug report'
-labels: ['status: needs-triage', 'v3', 'validate-reproduction']
+labels: ['status: needs-triage', 'validate-reproduction']
 body:
   - type: textarea
     attributes:

.github/workflows/pr-title.yml

@@ -114,8 +114,3 @@ jobs:
         uses: actions-ecosystem/action-add-labels@v1
         with:
           labels: v2
-      - name: Tag with main branch with v3
-        if: github.event.pull_request.base.ref == 'main'
-        uses: actions-ecosystem/action-add-labels@v1
-        with:
-          labels: v3