Support setting Target Role ARN for Pod Identity Associations (#164)

Issue #, if available: [2523](aws-controllers-k8s/community#2523)

Description of changes:
- Update aws-sdk-go-v2 to version 1.37.0
- Updated descriptions for various CRD fields
- Added disableSessionTags, targetRoleARN, and externalID fields to the PodIdentityAssociations CRD
- Updated PodIdentityAssociation delta.go and sdk.go to include new fields
- Added hook to force TargetRoleARN to empty string if not set during update operation.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

Author: knottnt

.gitignore

@@ -2,6 +2,7 @@
 *.swp
 *~
 .idea
+.vscode
 /docs/site
 bin
 build

apis/v1alpha1/ack-generate-metadata.yaml

@@ -1,13 +1,13 @@
 ack_generate_info:
-  build_date: "2025-07-22T21:59:20Z"
+  build_date: "2025-07-30T22:50:35Z"
   build_hash: b2dc0f44e0b08f041de14c3944a5cc005ba97c8f
   go_version: go1.24.5
   version: v0.50.0
-api_directory_checksum: fecde869000735952a2e71d711fb5e64d9ee638e
+api_directory_checksum: 2b5e65a1d5f0a032d51209f925b714aff4b6dc96
 api_version: v1alpha1
-aws_sdk_go_version: v1.36.3
+aws_sdk_go_version: v1.37.0
 generator_config_info:
-  file_checksum: b9a024fd6f58c760b92674ceeca4fd9aacc73eb0
+  file_checksum: ba92a429d7714ec0cbbc97d443575e9442b95c74
   original_file_name: generator.yaml
 last_modification:
   reason: API generation

apis/v1alpha1/addon.go

@@ -441,6 +441,8 @@ resources:
     hooks:
       sdk_update_pre_build_request:
         template_path: hooks/pod_identity_association/sdk_update_pre_build_request.go.tpl
+      sdk_update_post_build_request:
+        template_path: hooks/pod_identity_association/sdk_update_post_build_request.go.tpl
       sdk_read_one_post_set_output:
         template_path: hooks/pod_identity_association/sdk_read_one_post_set_output.go.tpl
       sdk_create_post_set_output: