fix:调整rbenv global版本，修复build_android失败问题

.gitlab-ci.yml

@@ -64,11 +64,7 @@ variables:
     - export NEXT_VERSION="$(cat app_new.version)"
     #    - flutter pub get
     - export PATH="/opt/homebrew/bin:$PATH"
-    - rbenv install 2.7.8 --skip-existing
-    - rbenv global 2.7.8
     - eval "$(rbenv init -)"
-    - rbenv --version
-    - ruby -v
     - bundle config mirror.https://rubygems.org https://gems.ruby-china.com
     - bundle install --gemfile android/Gemfile --quiet
   cache:
@@ -83,8 +79,6 @@ variables:
     #    - flutter pub get
     - export PATH="/opt/homebrew/bin:$PATH"
     - eval "$(rbenv init -)"
-    - rbenv --version
-    - ruby -v
     - bundle config mirror.https://rubygems.org https://gems.ruby-china.com
     - bundle install --gemfile ios/Gemfile --quiet
   cache: