Add disable identity enrichment flag for ListApps

[pmahindrakar-oss]

Why are the changes needed?

Some AppService List callers only need app metadata/spec/status and do not need display-oriented identity enrichment in the response.
This adds an explicit request-level opt-out so those callers can avoid unnecessary identity enrichment work while preserving the existing default behavior for current callers.

What changes were proposed in this pull request?

• Add disable_identity_enrichment to flyteidl2.app.ListRequest.
• Regenerate the Go protobuf and validation artifacts.

The new field defaults to false, so existing clients continue to receive the current behavior unless they explicitly opt out.

How was this patch tested?

go test ./gen/go/flyteidl2/app

### Labels

changed

### Setup process

N/A

### Screenshots

N/A

## Check all the applicable boxes

- [ ] I updated the documentation accordingly.
- [x] All new and existing tests passed.
- [ ] All commits are signed-off.

## Related PRs

Union cloud PR will consume this request flag.

## Stack
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## Docs link

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[Copilot]

Pull request overview

Adds a request-level flag to flyteidl2.app.ListRequest to allow callers to opt out of identity enrichment work while keeping the default behavior unchanged (flag defaults to false).

Changes:

• Added disable_identity_enrichment to flyteidl2.app.ListRequest.
• Regenerated Go protobuf output for the new field.
• Regenerated Go validation output (no validation rules applied for the new field).

Reviewed changes

Copilot reviewed 1 out of 3 changed files in this pull request and generated 1 comment.

File	Description
flyteidl2/app/app_payload.proto	Adds the disable_identity_enrichment field to ListRequest.
gen/go/flyteidl2/app/app_payload.pb.go	Regenerated Go protobuf bindings including the new field + getter.
gen/go/flyteidl2/app/app_payload.pb.validate.go	Regenerated validation code noting no rules for the new field.

Files not reviewed (2)

• gen/go/flyteidl2/app/app_payload.pb.go: Generated file
• gen/go/flyteidl2/app/app_payload.pb.validate.go: Generated file

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[katrogan]

LGTM but I think you need to regen protos in all languages, right?

[Copilot]

Pull request overview

Copilot reviewed 4 out of 7 changed files in this pull request and generated 1 comment.

Files not reviewed (3)

• gen/go/flyteidl2/app/app_payload.pb.go: Generated file
• gen/go/flyteidl2/app/app_payload.pb.validate.go: Generated file
• gen/python/flyteidl2/app/app_payload_pb2.py: Generated file