Pin plugins in archetypes so that they don't use the latest 4.x ones

[gnodet]

Karaf won't work with Maven 4.0.0-rc-1 (under vote), but this PR will get it ready to build with 4.0.0-rc-2.

[jherkel]

@gnodet I tried the latest mvnd 4.0 rc1 and I could see this exception:
Caused by: java.lang.NullPointerException: Cannot invoke "java.io.File.exists()" because the return value of "org.apache.maven.execution.MavenExecutionRequest.getUserSettingsFile()" is null at org.apache.karaf.tooling.VerifyMojo.execute(VerifyMojo.java:198) at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:144) at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2(MojoExecutor.java:339) at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute(MojoExecutor.java:310)

Sorry for reusing this issue but I'm not sure if your commit also solves exception above or there must be checks for null value returned by MavenExecutionRequest.getUserSettingsFile().

[gnodet]

@gnodet I tried the latest mvnd 4.0 rc1 and I could see this exception: Caused by: java.lang.NullPointerException: Cannot invoke "java.io.File.exists()" because the return value of "org.apache.maven.execution.MavenExecutionRequest.getUserSettingsFile()" is null at org.apache.karaf.tooling.VerifyMojo.execute(VerifyMojo.java:198) at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:144) at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2(MojoExecutor.java:339) at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute(MojoExecutor.java:310)

Sorry for reusing this issue but I'm not sure if your commit also solves exception above or there must be checks for null value returned by MavenExecutionRequest.getUserSettingsFile().

Yes, the issue has been raised already and fixed in Maven master, so it'll work with rc2.