Fix ClientFactory leaks in ResteasyClient

[ikhoon]

Motivation:

A ClientFactory leak was detected in CalculatorServiceClientServerTest

10:19:16.263 [Test worker] ERROR io.netty.util.ResourceLeakDetector - LEAK: ClientFactory.release() was not called before it's garbage-collected. See https://netty.io/wiki/reference-counted-objects.html for more information.
Recent access records:
Created at:
	com.linecorp.armeria.client.DefaultClientFactory.<init>(DefaultClientFactory.java:101)
	com.linecorp.armeria.client.ClientFactoryBuilder.build(ClientFactoryBuilder.java:998)
	com.linecorp.armeria.client.resteasy.ArmeriaResteasyClientBuilder.buildWebClient(ArmeriaResteasyClientBuilder.java:193)
	com.linecorp.armeria.client.resteasy.ArmeriaResteasyClientBuilder.build(ArmeriaResteasyClientBuilder.java:210)
	com.linecorp.armeria.server.resteasy.CalculatorServiceClientServerTest.newWebTarget(CalculatorServiceClientServerTest.java:124)
	com.linecorp.armeria.server.resteasy.CalculatorServiceClientServerTest.testCalc(CalculatorServiceClientServerTest.java:92)

A new ClientFactory is created when a ResteasyClient is made but the factory isn't closed.

armeria/resteasy/src/main/java/com/linecorp/armeria/client/resteasy/ArmeriaResteasyClientBuilder.java

Line 91 in cbe744e

return new ArmeriaResteasyClientBuilder(webClientBuilder, ClientFactory.builder());

Modifications:

• Close the WebClient's ClientFactory when ArmeriaJaxrsClientEngine is closed.

Result:

ResteasyClient now correctly releases ClientFactory when it is closed.

[jrhee17]

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[github-actions]

🔍 Build Scan® (commit: 5dce53e)

Job name	Status	Build Scan®
build-windows-latest-jdk-21	✅	https://ge.armeria.dev/s/zs34gqd7bpgyo
build-self-hosted-unsafe-jdk-8	✅	https://ge.armeria.dev/s/uxrlfyrjso2wi
build-self-hosted-unsafe-jdk-21-snapshot-blockhound	✅	https://ge.armeria.dev/s/g36zdpz6gnlga
build-self-hosted-unsafe-jdk-17-min-java-17-coverage	✅	https://ge.armeria.dev/s/s62fsjmuruz2e
build-self-hosted-unsafe-jdk-17-min-java-11	✅	https://ge.armeria.dev/s/p6nj6nn2aukws
build-self-hosted-unsafe-jdk-17-leak	✅	https://ge.armeria.dev/s/6jcikrvuns37o
build-self-hosted-unsafe-jdk-11	✅	https://ge.armeria.dev/s/cjvvv5rrz6omy
build-macos-12-jdk-21	✅	https://ge.armeria.dev/s/r3n6kgjfskvwa

[minwoox]

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