Update 3.6 patch level on landing docs page

Author: jyemin

docs/landing/data/releases.toml

@@ -11,7 +11,7 @@ current = "3.7.0"
   api = "./3.7/javadoc"
 
 [[versions]]
-  version = "3.6.3"
+  version = "3.6.4"
   status = "current"
   docs = "./3.6"
   api = "./3.6/javadoc"
@@ -64,19 +64,19 @@ current = "3.7.0"
 [[drivers]]
   name = "mongodb-driver"
   description = "The synchronous driver plus the legacy driver, new in 3.0.<br/>For older versions of the driver or for OSGi-based applications please use the `mongo-java-driver`."
-  versions = "3.8.0-beta2,3.7.0,3.6.3,3.5.0,3.4.3,3.3.0,3.2.2,3.1.1,3.0.4"
+  versions = "3.8.0-beta2,3.7.0,3.6.4,3.5.0,3.4.3,3.3.0,3.2.2,3.1.1,3.0.4"
 
 [[drivers]]
   name = "mongo-java-driver"
   description = "An uber jar containing the bson library, the core library and the mongodb-driver.<br/>This artifact is a valid OSGi bundle."
-  versions = "3.8.0-beta2,3.7.0,3.6.3,3.5.0,3.4.3,3.3.0,3.2.2,3.1.1,3.0.4,2.14.2,2.13.3"
+  versions = "3.8.0-beta2,3.7.0,3.6.4,3.5.0,3.4.3,3.3.0,3.2.2,3.1.1,3.0.4,2.14.2,2.13.3"
 
 [[drivers]]
   name = "mongodb-driver-async"
   description = "The new asynchronous driver, new in 3.0"
-  versions = "3.8.0-beta2,3.7.0,3.6.3,3.5.0,3.4.3,3.3.0,3.2.2,3.1.1,3.0.4"
+  versions = "3.8.0-beta2,3.7.0,3.6.4,3.5.0,3.4.3,3.3.0,3.2.2,3.1.1,3.0.4"
 
 [[drivers]]
   name = "mongodb-driver-core"
   description = "The core library, new in 3.0"
-  versions = "3.8.0-beta2,3.7.0,3.6.3,3.5.0,3.4.3,3.3.0,3.2.2,3.1.1,3.0.4"
+  versions = "3.8.0-beta2,3.7.0,3.6.4,3.5.0,3.4.3,3.3.0,3.2.2,3.1.1,3.0.4"