Fix gcp-java-gke-hello-world

[iwahbe]

Now this compiles with warnings:

[INFO] Scanning for projects...
[INFO]
[INFO] ----------------< com.pulumi:gcp-java-gke-hello-world >-----------------
[INFO] Building gcp-java-gke-hello-world 1.0-SNAPSHOT
[INFO]   from pom.xml
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] --- resources:3.3.0:resources (default-resources) @ gcp-java-gke-hello-world ---
[WARNING] Using platform encoding (UTF-8 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory /Users/ianwahbe/go/src/github.com/pulumi/examples/gcp-java-gke-hello-world/src/main/resources
[INFO]
[INFO] --- compiler:3.10.1:compile (default-compile) @ gcp-java-gke-hello-world ---
[INFO] Nothing to compile - all classes are up to date
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  0.380 s
[INFO] Finished at: 2023-07-14T18:49:30+02:00
[INFO] ------------------------------------------------------------------------
[WARNING]
[WARNING] Plugin validation issues were detected in 2 plugin(s)
[WARNING]
[WARNING]  * org.apache.maven.plugins:maven-compiler-plugin:3.10.1
[WARNING]  * org.apache.maven.plugins:maven-resources-plugin:3.3.0
[WARNING]
[WARNING] For more or less details, use 'maven.plugin.validation' property with one of the values (case insensitive): [BRIEF, DEFAULT, VERBOSE]
[WARNING]

Before it failed with compile errors.

[pulumi-staging[bot]]

:x: The Update for moolumi/k8s-ci-cluster/a85cc23d4a760c3f8b02648598748a45f4e5362d-1438 failed.

Resource Changes

    Name                  Type                                        Operation
+   ephemeral-ci-cluster  gcp:container/cluster:Cluster               create
+   multicloud            pulumi-kubernetes:ci:GkeCluster             create
+   password              random:index/randomPassword:RandomPassword  create

[iwahbe]

Fixes https://github.com/pulumi/pulumi-java/issues/1159