Fix deprecated Gradle configurations

[jra-se]

Update all Gradle configurations that are deprecated and will create conflicts for future Gradle versions

[jra-se]

TODO before merge

• fix SymTabDefinitionGradlePluginTest
• fix invocation of Task.project at execution time (see below)

Invocation of Task.project

Invocation of Task.project at execution time has been deprecated. This will fail with an error in Gradle 10.0. This API is incompatible with the configuration cache, which will become the only mode supported by Gradle in a future release. Consult the upgrading guide for further information: https://docs.gradle.org/8.14.4/userguide/upgrading_version_7.html#task_project

This is currently used in the following configuration, that is contained in symtabdefinitiontool/stdefgradle/build.gradle as well as in cdtool/cdgradle/build.gradle

tasks.register('generateResources') {
  ext {
    propFile = file("$buildDir/generated/buildInfo.properties")
  }
  outputs.file propFile
  doLast {
    mkdir propFile.parentFile
    propFile.text = "version=$project.version"
  }
}