Devservices must disabled themself if docker is not installed

Description

Currently, when docker is not installed, devservices that is enabled by default try to launch a database and fails with the following error :

2021-04-28 20:45:25,128 INFO  [org.tes.doc.DockerMachineClientProviderStrategy] (build-11) docker-machine executable was not found on PATH (...)
2021-04-28 20:45:55,371 ERROR [org.tes.doc.DockerClientProviderStrategy] (build-11) Could not find a valid Docker environment. Please check configuration. Attempted configurations were:
2021-04-28 20:45:55,372 ERROR [org.tes.doc.DockerClientProviderStrategy] (build-11)     NpipeSocketClientProviderStrategy: failed with exception TimeoutException (Timeout waiting for result with exception). Root cause NoSuchFileException (\\.\pipe\docker_engine)
2021-04-28 20:45:55,372 ERROR [org.tes.doc.DockerClientProviderStrategy] (build-11) As no valid configuration was found, execution cannot continue
2021-04-28 20:45:55,377 ERROR [io.qua.dep.dev.IsolatedDevModeMain] (main) Failed to start quarkus: java.lang.RuntimeException: io.quarkus.builder.BuildException: Build failure: Build failed due to errors

This is not very developer friendly, it feels like Docker is needed for Quarkus dev mode and people may think the only way to solve this is to install docker.

See this Zulip thread for more detail: https://quarkusio.zulipchat.com/#narrow/stream/187030-users/topic/Qarkus.20dev.20fails.20on.20new.20version

Implementation ideas

Auto-disable devservices in case Docker is not installed. The default error message will be displayed around datasource not configured.

[famod]

@geoand Maybe io.quarkus.container.image.docker.deployment.DockerWorking could be reused in some way?

[geoand]

I can look at this some time next week if no one beats me to it