feat (operator): add support for IRSA (aws resources access) (#3128)

* fix data to POSIX and sed working on macos
* add ServiceAccountGetter to the newFakeK8sAnnotationsClient for unit tests
* try to update the service account
* use irsa_role_arn since we need the full arn, and remove enable_irsa
* move sa sync code to existing sync.go file to be all together
* change all Irsa to IRSA to follow go idiomatic that capitalize initialisms or acronyms
* using Update instead of Patch for the service account syn
* document the new option and add the key in the values/configs
* add the new option to the administrator docs
* trying to increase the timeout for the flaky test after sync

---------

Co-authored-by: Felix Kunde <felix-kunde@gmx.de>

manifests/configmap.yaml

@@ -79,6 +79,7 @@ data:
   # inherited_annotations: owned-by
   # inherited_labels: application,environment
   # kube_iam_role: ""
+  # irsa_role_arn: ""
   kubernetes_use_configmaps: "false"
   # log_s3_bucket: ""
   # logical_backup_azure_storage_account_name: ""

manifests/operatorconfiguration.crd.yaml

@@ -73,6 +73,8 @@ spec:
                     type: integer
                   gcp_credentials:
                     type: string
+                  irsa_role_arn:
+                    type: string
                   kube_iam_role:
                     type: string
                   log_s3_bucket:

manifests/postgresql-operator-default-configuration.yaml

@@ -171,6 +171,7 @@ configuration:
     # enable_ebs_gp3_migration_max_size: 1000
     # gcp_credentials: ""
     # kube_iam_role: ""
+    # irsa_role_arn: ""
     # log_s3_bucket: ""
     # wal_az_storage_account: ""
     # wal_gs_bucket: ""