Implement `PpafmParameters` class based on the `pydantic.BaseModel` (… #796

Job	Run time
test-package (3.7)	5m 0s
Test docker image on ubuntu-latest	1m 55s
test-package (3.9)	3m 50s
test-package (3.10)	3m 53s
test-package (3.11)	3m 59s
test-package (3.12)	4m 59s
	23m 36s

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