Motivation: Currently we have to manually update the all_tests variable when introducing new test files. Fix: I've modified it to list test files dynamically, but rather than modify it to add all test files, I've first modified it to only add test files from the following 4 paths so that it doesn't deviate too much from what we already do - unit - unit/type - unit/cluster - integration Related issue: https://github.com/valkey-io/valkey/issues/302 --------- Signed-off-by: jonghoonpark <dev@jonghoonpark.com>