Added default tags to CertificateAuthority

[cebernardi]

Signed-off-by: Cecilia Bernardi cbernardi@expediagroup.com

Description of your changes

This PR adds the default tags to acmpca.CertificateAuthority resource ("crossplane-kind", "crossplane-name", "crossplane-providerconfig")

Fixes #1143

I have:

• Read and followed Crossplane's contribution process.
• Run make reviewable test to ensure this PR is ready for review.

How has this code been tested

• Unit Tests
• Manual Test on a kind cluster:
  • spin up a new kind cluster (kind create cluster --name crossplane-aws)
  • install CRDs (kubectl apply -f package/crds)
  • create resource scenario:
    • create an acmpca.CertificateAuthority in the cluster (kubectl apply -f examples/acmpca/certificateauthority.yaml)
    • start crossplane-aws controller
    • verify that the tags "crossplane-kind", "crossplane-name", "crossplane-providerconfig" are added as expected
  • modify resource scenario:
    • delete tags from the resource: kubectl patch certificateauthorities.acmpca.aws.crossplane.io/example --type=json -p='[{"op": "remove", "path":"/spec/forProvider/tags"}]'
    • verify that the tags "crossplane-kind", "crossplane-name", "crossplane-providerconfig" are re-added as expected
  • start controller scenario:
    • stop provider-aws controller
    • reset the acmpca.CertificateAuthority (kubectl apply -f examples/acmpca/certificateauthority.yaml)
    • start crossplane-aws controller
    • verify that the tags "crossplane-kind", "crossplane-name", "crossplane-providerconfig" are added as expected

[haarchri]

thanks for implementation - tested & it is working