Preserve Ruby path for TestFlight workflow

.gitea/workflows/testflight.yml

@@ -22,7 +22,7 @@ jobs:
       - name: Setup Ruby
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: "3.1"
+          ruby-version: "3.1.7"
           bundler-cache: true
           working-directory: ios
 
@@ -44,4 +44,7 @@ jobs:
           MATCH_GIT_BASIC_AUTHORIZATION: ${{ secrets.MATCH_GIT_BASIC_AUTHORIZATION }}
           FASTLANE_SKIP_UPDATE_CHECK: "1"
           FASTLANE_XCODEBUILD_SETTINGS_TIMEOUT: "120"
-        run: bundle exec fastlane ios beta
+        run: |
+          export PATH="/Users/runner/hostedtoolcache/Ruby/3.1.7/arm64/bin:${PATH}"
+          ruby --version
+          bundle exec fastlane ios beta