Fix PATH variable being empty in trapped function

[soraxas]

Commit 9b00c5c4c51c513b09ae32b97a0fbd8ca8590d45 introduced reducing $PATH when executing junest env. However, when the trap function is invoked due to failed command, the $PATH will becomes empty within the context of create wrapper.

Here are what happens before the PR when the trapped create_wrappers function is invoked under a failed status

$ ./bin/junest -- true
$ echo $?
0

$ ./bin/junest -- false
/home/soraxas/junest/lib/core/wrappers.sh: line 23: mkdir: No such file or directory
$ echo $?
127

[fsquillace]

Thanks for raising this! I was also looking at this issue. I updated the PATH in trap https://github.com/fsquillace/junest/commit/daa60b05e3cd4ebf75970ca19bb1a012339dfc8d

[fsquillace]

This should fix the issue. Thanks again.