fix(vpc): region regex validation

[maxsxu]

Motivation

According to the latest AWS Regions, we need to support more regions.

Code	Name	AZs	Geography	Opt-in status
us-east-1	US East (N. Virginia)	6	United States of America	Not required
us-east-2	US East (Ohio)	3	United States of America	Not required
us-west-1	US West (N. California)	3  †	United States of America	Not required
us-west-2	US West (Oregon)	4	United States of America	Not required
af-south-1	Africa (Cape Town)	3	South Africa	Required
ap-east-1	Asia Pacific (Hong Kong)	3	Hong Kong	Required
ap-south-2	Asia Pacific (Hyderabad)	3	India	Required
ap-southeast-3	Asia Pacific (Jakarta)	3	Indonesia	Required
ap-southeast-5	Asia Pacific (Malaysia)	3	Malaysia	Required
ap-southeast-4	Asia Pacific (Melbourne)	3	Australia	Required
ap-south-1	Asia Pacific (Mumbai)	3	India	Not required
ap-northeast-3	Asia Pacific (Osaka)	3	Japan	Not required
ap-northeast-2	Asia Pacific (Seoul)	4	South Korea	Not required
ap-southeast-1	Asia Pacific (Singapore)	3	Singapore	Not required
ap-southeast-2	Asia Pacific (Sydney)	3	Australia	Not required
ap-southeast-7	Asia Pacific (Thailand)	3	Thailand	Required
ap-northeast-1	Asia Pacific (Tokyo)	4	Japan	Not required
ca-central-1	Canada (Central)	3	Canada	Not required
ca-west-1	Canada West (Calgary)	3	Canada	Required
eu-central-1	Europe (Frankfurt)	3	Germany	Not required
eu-west-1	Europe (Ireland)	3	Ireland	Not required
eu-west-2	Europe (London)	3	United Kingdom	Not required
eu-south-1	Europe (Milan)	3	Italy	Required
eu-west-3	Europe (Paris)	3	France	Not required
eu-south-2	Europe (Spain)	3	Spain	Required
eu-north-1	Europe (Stockholm)	3	Sweden	Not required
eu-central-2	Europe (Zurich)	3	Switzerland	Required
il-central-1	Israel (Tel Aviv)	3	Israel	Required
mx-central-1	Mexico (Central)	3	Mexico	Required
me-south-1	Middle East (Bahrain)	3	Bahrain	Required
me-central-1	Middle East (UAE)	3	United Arab Emirates	Required
sa-east-1	South America (São Paulo)	3	Brazil	Not required

† Newer accounts can access two Availability Zones in US West (N. California).

Modifications

• Using \d to match the last digit of AWS region, and add missing first part

Verifying this change

Verifed locally

module "vpc" {
  source = "../../modules/vpc"

  region = "ap-southeast-5"

  vpc_cidr = "10.16.0.0/16"
  vpc_name = "test"
}

Documentation

• doc

  (If this PR contains doc changes)