v4.3.1: Update galaxy version and requirements.txt
Increases the collection version to 4.3.1 and specifies the dependency for PYAOSCX v2.5.1 (cherry picked from commit 6019ef3379f003f60c324b32ab321fb689266a7d)
Increases the collection version to 4.3.1 and specifies the dependency for PYAOSCX v2.5.1 (cherry picked from commit 6019ef3379f003f60c324b32ab321fb689266a7d)