refactor: use WaitGroup.Go to simplify code

[juejinyuxitu]

use WaitGroup.Go to simplify code.

More info can see: golang/go#63796

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[macroscopeapp]

Refactor the redis.TestRedisGetNonce_ConsumeManyConcurrent test in manager_test.go to use WaitGroup.Go for launching concurrent work

The test redis.TestRedisGetNonce_ConsumeManyConcurrent in manager_test.go replaces manual goroutine management using wg.Add(1), defer wg.Done(), and go func(){...} with a single call to wg.Go(func(){...}) inside the loop.

📍Where to Start

Start with the loop that launches concurrent nonce retrieval and consumption in redis.TestRedisGetNonce_ConsumeManyConcurrent within manager_test.go.

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Macroscope summarized e3ba026.

[mkysel]

thanks for the simplification!