selfcheck.sh: added options VALGRIND_TOOL and SIMPLECPP_PATH / CI-unixish.yml: use selfcheck.sh to run valgrind
#1104
| Job | Run time |
|---|---|
| 2m 32s | |
| 1m 16s | |
| 2m 28s | |
| 2m 49s | |
| 1m 3s | |
| 1m 12s | |
| 11m 20s |