devel/py-pydantic-yaml: Fix build after py-ruamel.yaml 0.18.2 update (580cbb2bbe1f9cd20b6a3467555fe98f1d2d0667)

• Bump PORTREVISION for package change

Reference: https://pkg-status.freebsd.org/beefy18/data/main-amd64-default/p3130e470f7e6_sc656f5c1a6/logs/py39-pydantic-yaml-1.2.0.log

		https://pkg-status.freebsd.org/beefy16/data/132amd64-default/7190d05ec515/logs/py39-pydantic-yaml-1.2.0.log