feat(aws-lambda) add 3 new regions (#18)

* add eu-north-1 (Stockholm)
* add me-south-1 (Bahrain)
* add eu-west-3

README.md

@@ -115,7 +115,7 @@ Here's a list of all the parameters which can be used in this plugin's configura
 | `consumer_id` || The id of the Consumer which this plugin will target.
 |`config.aws_key` <br>*semi-optional* || The AWS key credential to be used when invoking the function. This value is required if `aws_secret` is defined.
 |`config.aws_secret` <br>*semi-optional* ||The AWS secret credential to be used when invoking the function. This value is required if `aws_key` is defined.
-|`config.aws_region` || The AWS region where the Lambda function is located. Regions supported are: `ap-northeast-1`, `ap-northeast-2`, `ap-south-1`, `ap-southeast-1`, `ap-southeast-2`, `ca-central-1`, `cn-north-1`, `cn-northwest-1`, `eu-central-1`, `eu-west-1`, `eu-west-2`, `sa-east-1`, `us-east-1`, `us-east-2`, `us-gov-west-1`, `us-west-1`, `us-west-2`.
+|`config.aws_region` || The AWS region where the Lambda function is located. Regions supported are: `ap-northeast-1`, `ap-northeast-2`, `ap-south-1`, `ap-southeast-1`, `ap-southeast-2`, `ca-central-1`, `cn-north-1`, `cn-northwest-1`, `eu-central-1`, `eu-north-1`, `eu-west-1`, `eu-west-2`, `eu-west-3`, `me-south-1`, `sa-east-1`, `us-east-1`, `us-east-2`, `us-gov-west-1`, `us-west-1`, `us-west-2`.
 |`config.function_name` || The AWS Lambda function name to invoke.
 |`config.timeout`| `60000` | Timeout protection in milliseconds when invoking the function.
 |`config.keepalive`| `60000` | Max idle timeout in milliseconds when invoking the function.

kong/plugins/aws-lambda/schema.lua

@@ -8,7 +8,9 @@ local REGIONS = {
   "cn-north-1",
   "cn-northwest-1",
   "eu-central-1",
-  "eu-west-1", "eu-west-2",
+  "eu-north-1",
+  "eu-west-1", "eu-west-2", "eu-west-3",
+  "me-south-1",
   "sa-east-1",
   "us-east-1", "us-east-2",
   "us-gov-west-1",