Scales v1.3 renamed "trans" class to "transform"

[CarolineFrei]

Describe the bug
The version 1.3 of the scales package renamed the class returned by by scales::trans_new method from transto transform: r-lib/scales@1ed7b9a

This breaks the following line in transformerList: https://github.com/RGLab/flowWorkspace/blob/a564dbb03c37349255d420427629bf6ebef00b74/R/GatingSet_Methods.R#L1108C10-L1108C10

To Reproduce
Use any script using transformerList.

This throws: Error: 'trans' must be a list of transformer objects (generated by scales::trans_new method

Expected behavior
Should work

SessionInfo:
flowWorkspace_4.14.0
scales_1.3.0

Additional context
This was discovered when using CytoML::diva_to_gatingsetand should affect many downstream functions using flowWorkspace.

[mikejiang]

addressed by #393