[installer] Refactor generation of templates configmap

[aledbf]

Description

With the introduction of workspace classes and the default gitpod.io/internal/xl we need to change the path to not contain "directories".

"templates": {
  "defaultPath": "/workspace-templates/gitpod.io-internal-xl-default.yaml",
  "regularPath": "/workspace-templates/gitpod.io-internal-xl-regular.yaml",
  "prebuildPath": "/workspace-templates/gitpod.io-internal-xl-prebuild.yaml",
  "imagebuildPath": "/workspace-templates/gitpod.io-internal-xl-imagebuild.yaml"
},

Release Notes

[installer] Refactor generation of templates configmap #9868

[aledbf]

/hold

[csweichel]

We could still use directories - just sanitise the class name as done here in this PR

[aledbf]

We could still use directories - just sanitise the class name as done here in this PR

that is not a valid name in a configmap (fails with a similar error to label values)

[csweichel]

superseeded by #9895?

[aledbf]

superseeded by #9895?

Yes. Closing.