chore(deps): update LDCLI to api-client-go v24 for API version 20240415 [REL-16083]

[cjhensen]

HUMAN

I've been migrating gonfalon API consumers to the latest API version. This is a PR for the cli to move it to API V4.

ldcli now sends LD-API-Version: 20240415 on every non-beta request, so commands behave the same no matter which API version the access token defaults to. Tokens from ldcli login already use this version, but tokens passed with --access-token or saved in config can default to older versions that are being retired. The typed API client moves from api-client-go v14 to v24, which adds the header by default, and the HTTP client behind the generated resource commands now sets it as well. Beta commands still send beta.

Requirements

• I have added test coverage for new or changed functionality
• I have followed the repository's pull request submission guidelines
• I have validated my changes against all supported platform versions

Related issues

REL-16083 (Update LDCLI)

Describe the solution you've provided

• Bumps github.com/launchdarkly/api-client-go from v14.0.0 to v24.0.0, the latest major. v21.0.0 is the first major whose prepareRequest adds LD-API-Version: 20240415 when the request has no version. The only breaking change ldcli hit is NewPatchOperation dropping its value argument; internal/flags/client.go builds the struct directly, and the JSON sent is unchanged.
• internal/resources/client.go: MakeRequest sets LD-API-Version: 20240415 unless the operation is beta. The generated resource commands and the hand-written commands (flags toggle-on/off, flags archive, whoami, members invite, sdk-active, sourcemaps and symbols upload, setup verify) all go through this client, not api-client-go.
• Tests pin the header for both clients: 20240415 for the typed client and for non-beta MakeRequest, beta for beta MakeRequest.
• v24 models reject responses missing a spec-required field. The Terraform provider runs v24.0.0 for the same flag, project, environment, and member calls ldcli makes. The two list calls it doesn't make (GetFeatureFlags in dev-server, GetProjects in setup) return reps that always serialize the required fields.

v4 needed no pagination or response-shape code changes:

• dev-server pages the flag list at limit=100 until a short page and reads only items and variations (internal/dev_server/adapters/api.go).
• The setup wizard pages projects and environments at limit=100 (internal/setup/service.go).
• Quickstart reads environments from the single-flag GET, which v4 doesn't change (internal/quickstart/messages.go).
• Symbols and sourcemaps upload read only the project _id.
• compare isn't exposed: the spec marks it deprecated and the generator skips deprecated params.

User-visible changes for anyone on an older token (--access-token or config):

• flags list, segments list, custom-roles list, and workflows list return 20 items by default, and access-tokens list returns 25. Plaintext output already prints Showing results 1 - 20 of N. Use --offset 20 for additional results., and JSON output carries totalCount and _links.next. Tokens older than 20220603 also get the project list paged at 20, and projects omit environments unless --expand environments is passed.
• flags list omits each flag's environments unless the request uses --filter filterEnv:<env>.
• Filters v4 removed now return a 400: followerId, hasDataExport, status, contextKindTargeted, and segmentTargeted on the flag list, accessCheck on the member list, and --expand projects or --expand roles on the team list.

Describe alternatives you've considered

• Stopping at v21, the minimum major with the default header. v24 is the latest and matches the Terraform provider.
• Relying on api-client-go alone. That covers only setup, quickstart, and dev-server; the generated commands use their own HTTP client.

Additional context

• Not changed here: the five ai-configs agent-graph commands require LD-API-Version: beta per the spec, but their tag has no "(beta)" and the generated --ld-api-version flag is never sent as a header. They sent no version before this change and send 20240415 after it; both fail. This needs its own fix in the generator.
• go test ./... and golangci-lint v1.63.4 pass. No release is included.

---

Note

Overview
Upgrades ldcli to LaunchDarkly REST API version 20240415 by bumping api-client-go from v14 to v24 and aligning both HTTP paths with that version.

The typed client (setup, dev-server, flags, projects, members, etc.) now comes from v24, which sends LD-API-Version: 20240415 on requests. The separate internal/resources client used by generated and hand-written commands now sets the same header on non-beta calls; beta operations still send beta. Flag patch updates build PatchOperation structs directly after v24 dropped NewPatchOperation's value helper—the JSON payload is unchanged.

Tests assert LD-API-Version for the typed client and for MakeRequest (non-beta vs beta). Dependency lockfiles reflect the major client bump (including dropping golang.org/x/oauth2 as an indirect dep).

^{Reviewed by Cursor Bugbot for commit 5af62e9. Bugbot is set up for automated code reviews on this repo. Configure here.}