Add GitHub Actions workflow for version bump

Author: ImJustHenry

.github/workflows/version-bump.yml

@@ -0,0 +1,41 @@
+name: Auto Version Bump
+
+on:
+  pull_request:
+    types: [labeled]
+
+jobs:
+  bump-version:
+    if: >
+      github.event.label.name == 'patch' ||
+      github.event.label.name == 'minor' ||
+      github.event.label.name == 'major' ||
+      github.event.label.name == 'release'
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+
+      - name: Run version bump script
+        run: |
+          python tools/bump_version.py ${{ github.event.label.name }}
+
+      - name: Create Pull Request
+        uses: peter-evans/create-pull-request@v5
+        with:
+          commit-message: "chore: bump version (${{ github.event.label.name }})"
+          title: "chore: bump version (${{ github.event.label.name }})"
+          body: |
+            This version bump was triggered by PR #${{ github.event.pull_request.number }}
+            Label applied: **${{ github.event.label.name }}**
+          labels: version-bump
+          base: main
+          branch: auto-version-bump/${{ github.event.pull_request.number }}