Support eu-central-2, eu-south-2, me-central-1 and ap-south-2

[nakajiak]

• https://aws.amazon.com/jp/blogs/aws/now-open-aws-region-in-the-united-arab-emirates-uae/
• https://aws.amazon.com/jp/blogs/aws/a-new-aws-region-opens-in-switzerland/
• https://aws.amazon.com/jp/blogs/aws/now-open-aws-region-in-spain/
• https://aws.amazon.com/jp/blogs/aws/now-open-the-30th-aws-region-asia-pacific-hyderabad-region-in-india/

[nakajiak]

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