fix: resolve rubocop errors in instrumentation generators#1333

kaylareopelle merged 2 commits intoopen-telemetry:mainopen-telemetry/opentelemetry-ruby-contrib:mainfrom

ymtdzzz:fix/rubocop_errors_in_inst_genymtdzzz/opentelemetry-ruby-contrib:fix/rubocop_errors_in_inst_genCopy head branch name to clipboard