BREAKING CHANGE: Removing unsupported runtimes

https://docs.aws.amazon.com/lambda/latest/dg/lambda-runtimes.html#runtime-support-policy

Author: nexxai

src/Runtime.php

@@ -10,22 +10,14 @@ abstract class Runtime
 
     public const NODEJS_12 = 'nodejs12.x';
 
-    public const NODEJS_10 = 'nodejs10.x';
-
     public const PYTHON_39 = 'python3.9';
 
     public const PYTHON_38 = 'python3.8';
 
     public const PYTHON_37 = 'python3.7';
 
-    public const PYTHON_36 = 'python3.6';
-
-    public const PYTHON_27 = 'python2.7';
-
     public const RUBY_27 = 'ruby2.7';
-
-    public const RUBY_25 = 'ruby2.5';
-
+    
     public const JAVA_11 = 'java11';
 
     public const JAVA_8_LINUX2 = 'java8.al2';