feat: cleanup, update for latest xcode/swift, add release workflow

.github/workflows/release.yml

@@ -0,0 +1,23 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - "*.*.*"
+jobs:
+  release:
+    runs-on: macos-latest
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set Latest Tag
+        id: vars
+        run: echo "tag=$(git describe --tags `git rev-list --tags --max-count=1`)" >> $GITHUB_OUTPUT
+      - uses: ruby/setup-ruby@v1
+        with:
+          bundler-cache: true # runs 'bundle install' and caches installed gems automatically
+      - run: bundle exec fastlane test
+      - run: bundle exec fastlane release
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          TAG: ${{ steps.vars.outputs.tag }}