Remove `object_id` use in `OpenStruct#inspect` #147

Job	Run time
ruby-versions / Generate Ruby versions	3s
build (2.5 / ubuntu-latest)	12s
build (2.5 / macos-latest)	5s
build (2.6 / ubuntu-latest)	12s
build (2.6 / macos-latest)	9s
build (2.7 / ubuntu-latest)	11s
build (2.7 / macos-latest)	9s
build (3.0 / ubuntu-latest)	9s
build (3.0 / macos-latest)	9s
build (3.1 / ubuntu-latest)	11s
build (3.1 / macos-latest)	11s
build (3.2 / ubuntu-latest)	9s
build (3.2 / macos-latest)	8s
build (head / ubuntu-latest)	6s
build (head / macos-latest)	10s
build (jruby / ubuntu-latest)	10s
build (jruby / macos-latest)	10s
build (jruby-head / ubuntu-latest)	10s
build (jruby-head / macos-latest)	11s
build (truffleruby / ubuntu-latest)	10s
build (truffleruby / macos-latest)	6s
build (truffleruby-head / ubuntu-latest)	12s
build (truffleruby-head / macos-latest)	7s
	3m 30s

Provide feedback