[Alter]Schema Change in a big table will cause FE timeout and cancel this job

[WingsGo]

Describe the bug
When I doing a schema change job in a table which has 147 partitions，each partitions have 175 tablets，in pending stage，there is a error occurs, the error msg is Create replicas failed. Error: Error replicas: 15072977=32666105, 15072977=32672253，15072977=32653793. I go to FE source code and found the following code，it means that if be create tablet execcess the max timeout(1 min) will cause this error，so i search more info in be.info, try to found out if there is something error when create replicas or just only create replicas is timeout.

https://github.com/apache/incubator-doris/blob/87a84a793e0c66a2c3286a8d3adde3a273462f33/fe/src/main/java/org/apache/doris/alter/SchemaChangeJobV2.java#L249-L279

as shown in the last screenshot, the task starts at 00:00:31，ends at 00:01:32，so I go to the be machine , the last information as following，it means that the create replicas task finish and erase all task from queue at 00:01:33:88. So I think we should change the max timeout as configurable to avoid this case, and I will add a PR later.

I0218 00:01:33.876698 37320 tablet_manager.cpp:277] begin to process create tablet. tablet=32677985, schema_hash=1328100050
I0218 00:01:33.876894 37319 task_worker_pool.cpp:328] finish task success. result:1
I0218 00:01:33.876904 37319 task_worker_pool.cpp:286] type: CREATE, signature: 32677937, has been erased, queue size: 1
I0218 00:01:33.878705 37320 tablet_manager.cpp:1329] next_unique_id:267
I0218 00:01:33.879608 37320 tablet.cpp:333] no rowset for version:0-1, tablet: 32677985.1328100050.e24345ecc852edf0-4814d0d8717e04b9
I0218 00:01:33.879624 37320 tablet_manager.cpp:379] this request is for alter tablet request v2, so that not add alter task to tablet
I0218 00:01:33.880174 37320 tablet_meta_manager.cpp:115] save tablet meta , key:tabletmeta_32677985_1328100050 meta_size=11029
I0218 00:01:33.880295 37320 tablet_manager.cpp:437] finish to process create tablet. res=0
I0218 00:01:33.880302 37320 tablet_manager.cpp:324] finish to process create tablet. res=0
I0218 00:01:33.880513 37320 task_worker_pool.cpp:328] finish task success. result:1
I0218 00:01:33.880523 37320 task_worker_pool.cpp:286] type: CREATE, signature: 32677985, has been erased, queue size: 0

Screenshots