ci: backported workflows & docs from go-openapi/jsonpoint to the comm… #15

Job	Run time
Lint	32s
fuzz test	9s
Unit tests (windows-latest, oldstable)	1m 40s
Unit tests (ubuntu-latest, stable)	40s
Unit tests (macos-latest, stable)	1m 24s
Unit tests (macos-latest, oldstable)	53s
Unit tests (ubuntu-latest, oldstable)	46s
Unit tests (windows-latest, stable)	1m 35s
collect test reports	27s
tests completed	0s
collect test coverage	0s
	8m 6s

Provide feedback