Select the agent context given in environment.kubernetes.agent in CI

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Release notes

Proposal

Since the ci_access feature is available, GitLab injects the set of available kubernetes contexts to the Runner environment, and the user needs to select the context they want to use as a script (or before script). We do this selection for AutoDeploy using the KUBE_CONTEXT variable.

As we introduced the environment.kubernetes.agent syntax to configure an agent for the dashboard for Kubernetes, we can re-use this setting to pre-select the agent without any other setup from the user.