feat(taskworker): Make ingest transactions taskworker compatible (#90319)

This work is required to migrate tasks from celery to the new taskbroker
system. The sentry option will be used to control the rollout of these
tasks. The full migration plan is describe in this
[document](https://www.notion.so/sentry/Rollout-Planning-1bd8b10e4b5d80aeaaa7dba0efca83bc).

Author: enochtangg

src/sentry/options/defaults.py

@@ -3377,6 +3377,11 @@
     default={},
     flags=FLAG_AUTOMATOR_MODIFIABLE,
 )
+register(
+    "taskworker.ingest.transactions.rollout",
+    default={},
+    flags=FLAG_AUTOMATOR_MODIFIABLE,
+)
 register(
     "taskworker.telemetry-experience.rollout",
     default={},

src/sentry/tasks/store.py

@@ -26,7 +26,7 @@
 from sentry.stacktraces.processing import process_stacktraces, should_process_for_stacktraces
 from sentry.tasks.base import instrumented_task
 from sentry.taskworker.config import TaskworkerConfig
-from sentry.taskworker.namespaces import issues_tasks
+from sentry.taskworker.namespaces import ingest_transactions_tasks, issues_tasks
 from sentry.utils import metrics
 from sentry.utils.event_tracker import TransactionStageStatus, track_sampled_event
 from sentry.utils.safe import safe_execute
@@ -657,6 +657,10 @@ def save_event(
     time_limit=65,
     soft_time_limit=60,
     silo_mode=SiloMode.REGION,
+    taskworker_config=TaskworkerConfig(
+        namespace=ingest_transactions_tasks,
+        processing_deadline_duration=65,
+    ),
 )
 def save_event_transaction(
     cache_key: str | None = None,

src/sentry/taskworker/namespaces.py

@@ -36,6 +36,8 @@
 
 ingest_profiling_tasks = taskregistry.create_namespace("ingest.profiling")
 
+ingest_transactions_tasks = taskregistry.create_namespace("ingest.transactions")
+
 issues_tasks = taskregistry.create_namespace("issues")
 
 integrations_tasks = taskregistry.create_namespace("integrations")