ci: remove conventional semantic commit workflow (#3459)

.github/workflows/conventions-semantic-commits.yml

@@ -1,14 +0,0 @@
-# https://github.com/webiny/action-conventional-commits?tab=readme-ov-file
-name: "[Conventions] Semantic Commits"
-
-on:
-  pull_request:
-    branches: [ dev ]
-
-jobs:
-  build:
-    name: Conventional Commits
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - uses: webiny/action-conventional-commits@v1.3.0