* go get vault-plugin-secrets-kv@vault-4290-patch-metadata

* add kv metadata patch command

* add changelog entry

* success tests for kv metadata patch flags

* add more kv metadata patch flags tests

* add kv metadata patch cas warning test

* add kv-v2 key metadata patch API docs

* add kv metadata patch to docs

* prevent unintentional field overwriting in kv metadata put cmd

* like create/update ops, prevent patch to paths ending in /

* fix kv metadata patch cmd in docs

* fix flag defaults for kv metadata put

* go get vault-plugin-secrets-kv@vault-4290-patch-metadata

* fix TestKvMetadataPatchCommand_Flags test

* doc fixes

* go get vault-plugin-secrets-kv@master; go mod tidy