feat: Add multiple selectors on the creation of Fargate profile (#1378)

BREAKING CHANGES: To support multiple selectors for Fargate profiles, we introduced the `selectors` argument which is a list of map. This will break previous configuration with  a single selector `namespace` and `labels`. You'll need to rewrite your configuration to use the `selectors` argument. See [examples](https://github.com/terraform-aws-modules/terraform-aws-eks/blob/master/examples/fargate/main.tf) dans [docs](https://github.com/terraform-aws-modules/terraform-aws-eks/blob/master/modules/fargate/README.md) for details.

Co-authored-by: Lena <lena.mantziou@nationwide.co.uk>

examples/fargate/main.tf

@@ -72,15 +72,25 @@ module "eks" {
   vpc_id = module.vpc.vpc_id
 
   fargate_profiles = {
-    example = {
-      namespace = "default"
-
-      # Kubernetes labels for selection
-      # labels = {
-      #   Environment = "test"
-      #   GithubRepo  = "terraform-aws-eks"
-      #   GithubOrg   = "terraform-aws-modules"
-      # }
+    default = {
+      name = "default"
+      selectors = [
+        {
+          namespace = "kube-system"
+          labels = {
+            k8s-app = "kube-dns"
+          }
+        },
+        {
+          namespace = "default"
+          # Kubernetes labels for selection
+          # labels = {
+          #   Environment = "test"
+          #   GithubRepo  = "terraform-aws-eks"
+          #   GithubOrg   = "terraform-aws-modules"
+          # }
+        }
+      ]
 
       # using specific subnets instead of all the ones configured in eks
       # subnets = ["subnet-0ca3e3d1234a56c78"]