Log the errors reported by addLastRunError to the console (#179962)

Fixes: #179924

## To verify

Please follow the steps in the issue to reproduce.

x-pack/plugins/alerting/server/task_runner/task_runner.test.ts

@@ -3333,7 +3333,13 @@ describe('Task Runner', () => {
     });
 
     expect(getErrorSource(runnerResult.taskRunError as Error)).toBe(TaskErrorSource.FRAMEWORK);
-    expect(runnerResult.taskRunError).toEqual(new Error('an error occurred,second error occurred'));
+    expect(runnerResult.taskRunError?.message).toBe(
+      'Executing Rule test:1 has resulted in the following error(s): an error occurred,second error occurred'
+    );
+    expect(logger.error).toHaveBeenCalledWith(
+      'Executing Rule test:1 has resulted in the following error(s): an error occurred,second error occurred',
+      { tags: ['test', '1', 'rule-run-failed'] }
+    );
   });
 
   test('returns user error if all the errors are user error', async () => {

x-pack/plugins/alerting/server/task_runner/task_runner.ts

@@ -716,9 +716,16 @@ export class TaskRunner<
       const { errors: errorsFromLastRun } = this.ruleResult.getLastRunResults();
       if (errorsFromLastRun.length > 0) {
         const isUserError = !errorsFromLastRun.some((lastRunError) => !lastRunError.userError);
+        const lasRunErrorMessages = errorsFromLastRun
+          .map((lastRunError) => lastRunError.message)
+          .join(',');
+        const errorMessage = `Executing Rule ${this.ruleType.id}:${ruleId} has resulted in the following error(s): ${lasRunErrorMessages}`;
+        this.logger.error(errorMessage, {
+          tags: [this.ruleType.id, ruleId, 'rule-run-failed'],
+        });
         return {
           taskRunError: createTaskRunError(
-            new Error(errorsFromLastRun.map((lastRunError) => lastRunError.message).join(',')),
+            new Error(errorMessage),
             isUserError ? TaskErrorSource.USER : TaskErrorSource.FRAMEWORK
           ),
         };