Use redhat.fabric8-analytics instead of redhat.dependency-analytics in devfiles

In some samples like vertx-http-example we use redhat.dependency-analytics extension and it works with Theia editor because we have an aliases for it https://github.com/redhat-developer/devspaces/blob/devspaces-3-rhel-8/dependencies/che-plugin-registry/che-theia-plugins.yaml#L172.

To make it workable with VSCode editor and avoid a warning like:

We have to replace redhat.dependency-analytics with redhat.fabric8-analytics in extensions.json in all samples that want to use it, because the ID of Dependency Analytics extension is redhat.fabric8-analytics https://open-vsx.org/extension/redhat/fabric8-analytics.