Improve workflow throttling logic (#16260)

- if >5000 workflows per hour, new ones should failed
- if >100 workflow per min, new ones should be set as not started.
Except manual trigger
- when enqueued, we check if there a not started workflows that may be
queued. If yes, we call the associated job

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Co-authored-by: greptile-apps[bot] <165735046+greptile-apps[bot]@users.noreply.github.com>

packages/twenty-server/src/engine/core-modules/metrics/types/metrics-keys.type.ts

@@ -20,7 +20,7 @@ export enum MetricsKeys {
   WorkflowRunCompleted = 'workflow-run/completed',
   WorkflowRunFailed = 'workflow-run/failed',
   WorkflowRunStopped = 'workflow-run/stopped',
-  WorkflowRunFailedThrottled = 'workflow-run/failed/throttled',
+  WorkflowRunThrottled = 'workflow-run/throttled',
   WorkflowRunFailedToEnqueue = 'workflow-run/failed/to-enqueue',
   AIToolExecutionFailed = 'ai-tool-execution/failed',
   AIToolExecutionSucceeded = 'ai-tool-execution/succeeded',