chore: update Python versions in CI workflow 

chore: bump version 4.6.4 

chore: bump version 4.6.3 

chore: bump version 4.6.2 

chore: bump version 4.6.1 

chore: bump version 4.6.0 

chore: bump version 4.5.4 

chore: bump version 4.5.3 

chore: bump version 4.6.0b2 for testing 

chore: bump version 4.6.0-beta.1 for testing