Jib Gradle Plugin emits warning on gradle 8.2 due to referencing deprecated convention.

[madorb]

Environment:

• Jib version: 3.3.1
• Build tool: gradle
• OS: macos

Description of the issue:
When applying jib plugin to a project using gradle 8.2 (with --stacktrace enabled to show exact location) the following warnings are emitted:

The Project.getConvention() method has been deprecated. This is scheduled to be removed in Gradle 9.0. Consult the upgrading guide for further information: https://docs.gradle.org/8.2/userguide/upgrading_version_8.html#deprecated_access_to_conventions
        at org.gradle.api.internal.project.DefaultProject.getConvention(DefaultProject.java:593)
        at com.google.cloud.tools.jib.gradle.JibPlugin.lambda$apply$9(JibPlugin.java:187)
...
The org.gradle.api.plugins.Convention type has been deprecated. This is scheduled to be removed in Gradle 9.0. Consult the upgrading guide for further information: https://docs.gradle.org/8.2/userguide/upgrading_version_8.html#deprecated_access_to_conventions
        at org.gradle.internal.extensibility.DefaultConvention.logConventionDeprecation(DefaultConvention.java:398)
        at org.gradle.internal.extensibility.DefaultConvention.findPlugin(DefaultConvention.java:100)
        at org.gradle.internal.extensibility.DefaultConvention.getPlugin(DefaultConvention.java:89)
        at com.google.cloud.tools.jib.gradle.JibPlugin.lambda$apply$9(JibPlugin.java:188)
...
The org.gradle.api.plugins.JavaPluginConvention type has been deprecated. This is scheduled to be removed in Gradle 9.0. Consult the upgrading guide for further information: https://docs.gradle.org/8.2/userguide/upgrading_version_8.html#java_convention_deprecation
        at org.gradle.api.plugins.internal.NaggingJavaPluginConvention.logDeprecation(NaggingJavaPluginConvention.java:185)
        at org.gradle.api.plugins.internal.NaggingJavaPluginConvention.getSourceSets(NaggingJavaPluginConvention.java:154)
        at com.google.cloud.tools.jib.gradle.JibPlugin.lambda$apply$9(JibPlugin.java:189)        

This appears to be due to loading the convetion here: https://github.com/GoogleContainerTools/jib/blob/master/jib-gradle-plugin/src/main/java/com/google/cloud/tools/jib/gradle/JibPlugin.java#L187

Expected behavior:
Jib gradle plugin does not show deprecation warnings

Steps to reproduce:

1. Apply jib to a gradle project using gradle >= 8.2

[diegomarquezp]

Hi @madorb, thanks for bringing this up. It seems like we need to update the usage of conventions in favor of extensions (docs).

[alicejli]

I believe this is fixed with #3892. Please re-open if not.

[madorb]

looks like that should resolve it, will update and test once a release is made

[bmuschko]

Can you provide an ETA on when this fix will be released?

[OverDrone]

latest release 3.3.2 (May 23) does not include this fix. When we may expect a new release?