Upgrade org.jetbrains.intellij Gradle plugin

[froque]

• https://plugins.jetbrains.com/docs/intellij/tools-intellij-platform-gradle-plugin-migration.html
• https://github.com/JetBrains/intellij-platform-gradle-plugin/releases/tag/v2.0.0
• https://blog.jetbrains.com/platform/2024/07/intellij-platform-gradle-plugin-2-0/
• https://github.com/JetBrains/intellij-platform-plugin-template/pull/458/files

[froque]

> Task :verifyPluginConfiguration

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Gradle IntelliJ Plugin 1.x does not support building plugins against the IntelliJ Platform 2024.2+ (242+).

Please upgrade your configuration to use the IntelliJ Platform Gradle Plugin 2.0.0 or higher!
See: https://plugins.jetbrains.com/docs/intellij/tools-intellij-platform-gradle-plugin.html

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[gradle-intellij-plugin :verifyPluginConfiguration] The following plugin configuration issues were found:
- The Java configuration specifies sourceCompatibility=11 but IntelliJ Platform 2025.1 requires sourceCompatibility=17.
See: https://jb.gg/intellij-platform-versions