feature: definition of the "enabled integrations" in the CRD

Defines the "enabled integrations" field for the ToolchainConfig CRD.

SANDBOX-1769

Author: MikelAlejoBR

config/crd/bases/toolchain.dev.openshift.com_toolchainconfigs.yaml

@@ -403,6 +403,15 @@ spec:
                           WorkatoWebHookURL is used by the UI to push events to Marketo for analytics purposes.
                           The webhook URL is unique per environment.
                         type: string
+                      enabledIntegrations:
+                        description: |-
+                          EnabledIntegrations specifies the list of integrations that should be
+                          visible/enabled in the UI. When nil or empty, all integrations are
+                          considered enabled. When populated, only the listed integrations are shown.
+                        items:
+                          type: string
+                        type: array
+                        x-kubernetes-list-type: set
                     type: object
                   spaceConfig:
                     description: Keeps parameters necessary for configuring Space