Fixes broken system tests for ispyb and some of the external callbacks tests which were attempting to launching the external process with the wrong parameters.
~ispyb tests also need related dodal PR which reinstates some code that got removed accidentally~
~Link to dodal PR (if required): DiamondLightSource/dodal#542~
Fixes broken system tests for ispyb and some of the external callbacks tests which were attempting to launching the external process with the wrong parameters.
~ispyb tests also need related dodal PR which reinstates some code that got removed accidentally~ ~Link to dodal PR (if required): DiamondLightSource/dodal#542~
To test: