(A001) Simplify workflow for unittests (#411)

* simplify main test workflow - do not run test_FMIRegression

* these are test for OpenModelica / no specific check for OMPython
* they are run via a cron job
* it increases the runtime of the unittest job

* remove FMITest from README.md

---------

Co-authored-by: Adeel Asghar <adeel.asghar@liu.se>

Author: syntron

.github/workflows/FMITest.yml

@@ -73,7 +73,7 @@ jobs:
           verbose: true
           emoji: true
           job-summary: true
-          custom-arguments: '-v '
+          custom-arguments: '-v'
           click-to-expand: true
           report-title: 'Test Report'
 

.github/workflows/Test.yml

@@ -3,7 +3,6 @@
 OMPython is a Python interface that uses ZeroMQ to
 communicate with OpenModelica.
 
-[![FMITest](https://github.com/OpenModelica/OMPython/actions/workflows/FMITest.yml/badge.svg)](https://github.com/OpenModelica/OMPython/actions/workflows/FMITest.yml)
 [![Test](https://github.com/OpenModelica/OMPython/actions/workflows/Test.yml/badge.svg)](https://github.com/OpenModelica/OMPython/actions/workflows/Test.yml)
 
 ## Dependencies