🚀 Feat run retry policy

[baptman21]

Description

Add a retry policy to allow the operator to retry runs that failed.

Usage Example

apiVersion: app.terraform.io/v1alpha2
kind: Workspace
metadata:
  name: tmp
spec:
  allowDestroyPlan: false
  applyMethod: auto
  description: "Example with Retry enabled"
  executionMode: agent
  name: example
  organization: test
  project:
    name: Default Project
  tags:
  - test
  terraformVariables:
    - hcl: false
      name: env
      sensitive: false
      value: dev
  retryPolicy:
    backoffLimit:  3
  token:
    secretKeyRef:
      key: token
      name: example-token
  versionControl:
    branch: main
    oAuthTokenID: ot-XXXXXXXXXXX
    repository: example
  workingDirectory: example/test

References

Fixes GH-163
Dependent on PR GH-594

Requires

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