ci: default task_set to all for automated release dispatch (#213)

repository_dispatch from channel-versions now defaults to task_set=all
(changelog, licenses, telemetry, warp_app_update) instead of changelog-only.
manual workflow_dispatch still defaults to changelog for safe testing.

Co-authored-by: Oz <oz-agent@warp.dev>

Author: dannyneira

.github/workflows/release-docs-update.yml

@@ -68,7 +68,7 @@ jobs:
           if event_name == "repository_dispatch":
               raw = {
                   "channel_versions_ref": os.environ.get("DISPATCH_CHANNEL_VERSIONS_REF") or "main",
-                  "task_set": os.environ.get("DISPATCH_TASK_SET") or "changelog",
+                  "task_set": "all",  # always run all tasks for automated dispatch
                   "create_draft_pr": os.environ.get("DISPATCH_CREATE_DRAFT_PR") or "false",
                   "assign_oncall_reviewers": os.environ.get("DISPATCH_ASSIGN_ONCALL_REVIEWERS") or "false",
               }