Bump rdoc from 6.6.2 to 6.6.3.1 in /rails_event_store/spec/dummy_7_1 #279

Job	Run time
test (ruby-3.3, Gemfile, sqlite3:db.sqlite3, binary)	57s
test (ruby-3.2, Gemfile, sqlite3:db.sqlite3, binary)	58s
test (ruby-3.1, Gemfile, sqlite3:db.sqlite3, binary)	1m 8s
test (ruby-3.0, Gemfile, sqlite3:db.sqlite3, binary)	58s
test (ruby-3.3, Gemfile, postgres://postgres:secret@localhost:10015/rails_event_store?pool=5, bin...	1m 19s
test (ruby-3.3, Gemfile, postgres://postgres:secret@localhost:10011/rails_event_store?pool=5, bin...	1m 23s
test (ruby-3.3, Gemfile, postgres://postgres:secret@localhost:10015/rails_event_store?pool=5, json)	1m 16s
test (ruby-3.3, Gemfile, postgres://postgres:secret@localhost:10015/rails_event_store?pool=5, jsonb)	1m 17s
test (ruby-3.3, Gemfile, mysql2://root:[email protected]:10008/rails_event_store?pool=5, binary)	1m 12s
test (ruby-3.3, Gemfile, mysql2://root:[email protected]:10005/rails_event_store?pool=5, binary)	1m 8s
test (ruby-3.3, Gemfile, mysql2://root:[email protected]:10008/rails_event_store?pool=5, json)	1m 10s
	12m 46s

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