java-client/src/main/java/co/elastic/clients/elasticsearch/indices/update_aliases/Action.java The Builder of Action of updateAliases should use [return self()] instead of [return this] and change the return type to [Builder]

java-client/src/main/java/co/elastic/clients/elasticsearch/indices/update_aliases/Action.java The Builder of Action of updateAliases should use [return self()] instead of [return this] and change the return type to [Builder] #204