minor #59850 [VarDumper] Don't make `CurlCasterTest` response status … #341

Job	Run time
Unit Tests (8.4, amqp,apcu,brotli,igbinary,intl,mbstring,memcached,redis,relay,zstd)	3m 17s
Unit Tests (8.2)	2m 37s
Unit Tests (8.2, low-deps)	4m 46s
Unit Tests (8.2, high-deps)	4m 10s
Unit Tests (8.3)	2m 25s
Unit Tests (8.5)	2m 40s
	19m 55s

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