feat: Conditions improvements

[maciaszczykm]

• Rename current Ready condition to Synchronized. Synchronized will be used to indicate that resource was successfully reconciled. Ready will indicate actual resource status, i.e. it if was provisioned/created successfully.
• Sync conditions from API to Cluster custom resource, including Ready condition.
• Add Ready condition for GitRepository custom resource based on GitHealth (if pullable).
• Add Ready condition for Provider custom resource based on its service components status (if all are running).
• Fix bug that would cause Provider to be considered readonly even if it would be created by this controller (needed to mark it as non-readonly earlier in case some error occurs).
• Sort conditions during tests to make them more stable.
• Fix build and unit tests in CI.

[github-actions]

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