Changed
- Bumped the Ruby version for development to 2.7.7
- Bumped the RuboCop version for development to 1.48.0
- Bumped the Travis matrix to 2.7.7, 3.0.5, 3.1.3, 3.2.1
- Bumped the Pry version for development to 0.14.1
- Bumped the VCR version for development to 6.1
- RuboCop fixes