Cache unit tests failed on debian ci build

[masaori335]

I saw at least two failure on debian job of Pull-Request Builder. Did we change something?

For PR#11366

99% tests passed, 1 tests failed out of 138

Total Test time (real) =  30.24 sec

The following tests FAILED:
	 25 - test_cache_CacheStripe (SEGFAULT)
```	 
https://ci.trafficserver.apache.org/job/Github_Builds/job/debian/4353/console


For PR#11371

WARNING: waiting on lock test_CacheDir.cc:85 (cache_init_success_callback) for UNKNOWN WARNING: waiting on lock test_CacheDir.cc:85 (cache_init_success_callback) for UNKNOWN WARNING: waiting on lock test_CacheDir.cc:85 (cache_init_success_callback) for UNKNOWN WARNING: waiting on lock test_CacheDir.cc:85 (cache_init_success_callback) for UNKNOWN WARNING: waiting on lock test_CacheDir.cc:85 (cache_init_success_callback) for UNKNOWN WARNING: waiting on lock test_CacheDir.cc:85 (cache_init_success_callback) for UNKNOWN WARNING: waiting on lock test_CacheDir.cc:85 (cache_init_success_callback) for UNKNOWN WARNING: waiting on lock test_CacheDir.cc:85 (cache_init_success_callback) for UNKNOWN WARNING: waiting on lock test_CacheDir.cc:85 (cache_init_success_callback) for UNKNOWN WARNING: waiting on lock test_CacheDir.cc:85 (cache_init_success_callback) for UNKNOWN WARNING: waiting on lock test_CacheDir.cc:85 (cache_init_success_callback) for UNKNOWN WARNING: waiting on lock test_CacheDir.cc:85 (cache_init_success_callback) for UNKNOWN WARNING: waiting on lock test_CacheDir.cc:85 (cache_init_success_callback) for UNKNOWN

99% tests passed, 1 tests failed out of 138

Total Test time (real) = 1502.08 sec

The following tests FAILED: 13 - test_cache_CacheDir (Timeout) Errors while running CTest

https://ci.trafficserver.apache.org/job/Github_Builds/job/debian/4363/console

[JosiahWI]

The first of the two failures may have been fixed by #11347.