pytest: support non-top level dirs #176

Job	Run time
save_pr_number	2s
🐧 Ubuntu / GNU@7.5	4m 19s
🐧 Ubuntu / GNU@10.1	8m 14s
🐧 Ubuntu / Clang@6.0 w/o MPI	3m 23s
🐧 Ubuntu / Clang@14.0 w/ libc++ w/ MPI	3m 28s
🐧 Ubuntu / CUDA@11.2 GNU@9.3.0	3m 3s
🐧 HIP / HIP	16m 52s
🐧 Intel / oneAPI SYCL 3D	12m 56s
🐧 Intel / ICC	11m 28s
🐧 Intel / ICPX	10m 50s
🍏 macOS / AppleClang@14.0 w/o MPI	14m 2s
🪟 Windows / Clang w/o MPI shared debug	44m 25s
🪟 Windows / MSVC w/o MPI static release	33m 3s
🔄 Update Stub Files	0s
	2h 46m 5s

Provide feedback