ci: remove node dependency from commit validation

Signed-off-by: Vitor Mattos <1079143+vitormattos@users.noreply.github.com>

Author: vitormattos

.github/workflows/commitlint.yml

@@ -10,8 +10,23 @@ jobs:
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0
-      - uses: actions/setup-node@v4
-        with:
-          node-version: 20
-      - run: npm ci
-      - run: npx commitlint --from=${{ github.event.pull_request.base.sha }} --to=${{ github.sha }}
+      - name: Validate Conventional Commits
+        run: |
+          set -euo pipefail
+          RANGE="${{ github.event.pull_request.base.sha }}..${{ github.sha }}"
+
+          invalid=0
+          while IFS= read -r message; do
+            [[ -z "$message" ]] && continue
+
+            if [[ "$message" =~ ^(build|chore|ci|docs|feat|fix|perf|refactor|revert|style|test)(\([a-z0-9._/-]+\))?!?:\ .+ ]]; then
+              continue
+            fi
+
+            echo "Invalid conventional commit message: $message"
+            invalid=1
+          done < <(git log --format=%s "$RANGE")
+
+          if [[ $invalid -ne 0 ]]; then
+            exit 1
+          fi