Replace deprecated Gradle properties

[jgosmann]

We noticed two properties in the Gradle build files that were reported as deprecated. This PR replaces them with the new names.

• destinationDir -> destinationDirectory (scheduled to be removed in Gradle 9.0)
• archiveName -> archiveFileName (removed in Gradle 8.0)

Cp. https://docs.gradle.org/current/userguide/upgrading_version_7.html

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[wing328]

@jgosmann thanks for the PR. With this change, does it mean we drop the support for Gradle 7.x?

[jgosmann]

I think this does not affect support for Gradle 7.x.

• We are still using Gradle 7.x and did the replacements already in the clients we've generated without encountering a problem. However, the affected places seem to be only relevant when targeting Android, which we do not.
• At least the 7.3 documentation of AbstractCompile and AbstractArchiveTask already lists the deprecations and replacements.

btw: I amended the commit because I was a bit too eager with the replacements. Hopefully, this makes all tests pass again.

[wing328]

CI tests failure not related to this change.

[wing328]

@jgosmann thanks for the explanation. I did some tests locally and the result is good so we can merge this.

FYI. I also spotted another warning but I think we can deal with that with another PR instead:

> Configure project :
The JavaExec.main property has been deprecated. This is scheduled to be removed in Gradle 8.0. Please use the mainClass property instead. See https://docs.gradle.org/7.2/dsl/org.gradle.api.tasks.JavaExec.html#org.gradle.api.tasks.JavaExec:main for more details.
        at build_8n2n0lmixavm552r5h1hubo3n$_run_closure8.doCall(/Users/williamcheng/Code/openapi-generator7/samples/client/petstore/java/okhttp-gson-group-parameter/build.gradle:99)
        (Run with --stacktrace to get the full stack trace of this deprecation warning.)