fix(helm): correctly format imagePullSecrets for metrics deployment

[jakub-qg]

What

Error: YAML parse error on airbyte/charts/metrics/templates/deployment.yaml: error converting YAML to JSON: yaml: line 27: did not find expected key
helm.go:84: [debug] error converting YAML to JSON: yaml: line 27: did not find expected key
YAML parse error on airbyte/charts/metrics/templates/deployment.yaml

Before:

    spec:
      serviceAccountName: airbyte-admin
      imagePullSecrets:
  - name: dockerhub
      nodeSelector:
        dedicated: root-node

After:

    spec:
      serviceAccountName: airbyte-admin
      imagePullSecrets:
        - name: dockerhub # <-- CHANGE HERE
      nodeSelector:
        dedicated: root-node

How

• fix yaml indentation to allow correct parsing

Can this PR be safely reverted and rolled back?

• YES 💚

[CLAassistant]

All committers have signed the CLA.

[Udit107710]

Any update on when this can be fixed?