linkml/linkml-model: v1.6.0

What's Changed proposal add jsonpointer path types by @cmungall in https://github.com/linkml/linkml-model/pull/159 Adding implements metaslot by @cmungall in https://github.com/linkml/linkml-model/pull/163 changing the range of extensions from string to Any by @cmungall in https://github.com/linkml/linkml-model/pull/162 rename conflicting class by @cmungall in https://github.com/linkml/linkml-model/pull/164 basic repo maintenance by @sierra-moxon in https://github.com/linkml/linkml-model/pull/167 Add missing "not" to partial_match slot description by @pkalita-lbl in https://github.com/linkml/linkml-model/pull/166 Use versioned documentation deployment by @pkalita-lbl in https://github.com/linkml/linkml-model/pull/168 Full Changelog: https://github.com/linkml/linkml-model/compare/v1.5.2...v1.6.