Switch bash from sh to bash in fin exec
Switch bash from sh to bash in fin exec

This reverts commit cac0fa5a5b174fde00d342b05a37799a1bed03b6
sh is dumb and does not load additional configuration from ~/.bashrc
Issues with exit code 129 from php based tools will be addressed in the following commit.

docksal/docksal,michael-molchanov/docksal