[Build] Temporarily use tycho-apitools:verify mojo in version 4.0.8

[HannesWell]

Temporarily revert the tycho-apitools:verify mojo to version 4.0.8 for API checks to hopefully unblock verification builds that are currently suffering from #2360 (comment).

[HannesWell]

After about 150 projects checked this failed with

[ERROR] Failed to execute goal org.eclipse.tycho:tycho-apitools-plugin:4.0.8:verify (verify) on project org.eclipse.ui.genericeditor:
Execute ApiApplication failed: InvocationTargetException:
Error reading manifest for
/home/jenkins/agent/workspace/atform.releng.aggregator_PR-2380/.m2/repository/p2/osgi/bundle/jakarta.inject.jakarta.inject-api.source/2.0.1/jakarta.inject.jakarta.inject-api.source-2.0.1.jar:
zip file is empty -> [Help 1]

But I'm in doubt that this is really related to this change.
And since it cannot really get worse I'll submit this to see how it works in the different repositories.

[HannesWell]

Btw. only for the native SWT fragments still Tycho 4.0.9 is used because it's version is explicitly configured there:

• https://github.com/eclipse-platform/eclipse.platform.swt/blob/02e20d69dcddf3567979ebb33ef73f43e3d5fd4b/binaries/pom.xml#L69

If we we need this to have an effect there too we have to inherit the version from the parent. But currently SWT sufferes bigger problems:
#2360 (comment)

[HannesWell]

At least for eclipse.platform and eclipse.platform.ui it looks like the apitools verification now works again.