Bump version of a test plugin

[basilevs]

Unblocks #688

Fixes

Failed to execute goal org.eclipse.tycho.extras:tycho-p2-extras-plugin:4.0.6:compare-version-with-baselines (compare-version-with-baseline) on project org.eclipse.lsp4e.tests.mock: Only qualifier changed for (org.eclipse.lsp4e.tests.mock/0.16.8.202403191733). Expected to have bigger x.y.z than what is available in baseline (0.16.8.202402141138) -> [Help 1]

[basilevs]

Looks like PRs are using build settings different from master and are failing:

[ERROR] Cannot resolve project dependencies:
[ERROR]   Software being installed: org.eclipse.lsp4e.test 0.15.11.qualifier
[ERROR]   Missing requirement: org.eclipse.lsp4e.test 0.15.11.qualifier requires 'osgi.bundle; org.eclipse.osgi.services 0.0.0' but it could not be found

[basilevs]

@rubenporras could you force master branch build to see if it still works?

[joaodinissf]

Hi @basilevs, could you please try to rebase #688 on master? I believe that #950 should resolve the issues you ran into with the Jenkins builds.

[basilevs]

Is not a blocker anymore.