Pin upper limit to ovos-plugin-manager to work around breaking change #337

Job	Run time
unit_tests (3.7)	3m 44s
unit_tests (3.8)	4m 6s
unit_tests (3.9)	3m 58s
unit_tests (3.10)	3m 52s
docker_build_tests / docker_build_tests	2m 45s
py_build_tests / py_build_tests	13s
py_build_tests / relative_path_tests	9s
	18m 47s

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