Fix blocking commands timeout is reset due to re-processing command (#13004)
In #11012, we will reprocess command when client is unblocked on keys, in some blocking commands, for example, in the XREADGROUP BLOCK scenario, because of the re-processing command, we will recalculate the block timeout, causing the blocking time to be reset. This commit add a new CLIENT_REPROCESSING_COMMAND clent flag, explicitly let the command know that it is being re-processed, later in blockForKeys we will not reset the timeout. Affected BLOCK cases: - list / zset / stream, added test cases for each. Unaffected cases: - module (never re-process the commands). - WAIT / WAITAOF (never re-process the commands). Fixes #12998.
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