MM-17888 Check plugin Helpers minimum server version comments (#12663)

plugin/helpers.go

@@ -8,9 +8,13 @@ import "github.com/mattermost/mattermost-server/model"
 type Helpers interface {
 	// EnsureBot either returns an existing bot user matching the given bot, or creates a bot user from the given bot.
 	// Returns the id of the resulting bot.
+	//
+	// Minimum server version: 5.10
 	EnsureBot(bot *model.Bot) (string, error)
 
 	// KVSetJSON stores a key-value pair, unique per plugin, marshalling the given value as a JSON string.
+	//
+	// Minimum server version: 5.2
 	KVSetJSON(key string, value interface{}) error
 
 	// KVCompareAndSetJSON updates a key-value pair, unique per plugin, but only if the current value matches the given oldValue after marshalling as a JSON string.
@@ -31,6 +35,8 @@ type Helpers interface {
 	KVCompareAndDeleteJSON(key string, oldValue interface{}) (bool, error)
 
 	// KVGetJSON retrieves a value based on the key, unique per plugin, unmarshalling the previously set JSON string into the given value. Returns true if the key exists.
+	//
+	// Minimum server version: 5.2
 	KVGetJSON(key string, value interface{}) (bool, error)
 
 	// KVSetWithExpiryJSON stores a key-value pair with an expiry time, unique per plugin, marshalling the given value as a JSON string.