How to extract a string which contains a digit followed by a letter?

Gives the below JSON:

{
  "environments": [
    {"env": "dev", "description": "dev environment"},
    {"env": "dev01", "description": "dev01 environment"},
    {"env": "dev01b", "description": "dev01 blue environment"},
    {"env": "dev01g", "description": "dev01 green environment"}
  ]
}

I'm only interested in extracting dev01b and dev01g. Any environment with a digit followed by a letter.
In this case dev01b, dev01g.

I tried contains and ends_with functions and I was able to extract the required strings.

But, the number of environments keep increasing and I need to extract all these environment names with digit followed by letter in the end. And it is not sustainable to add ends_with function for all combinations of letters and digit.

I want to add some regex kind of grammar in the ends_with function and extract all the values.

Is it possible with JMESPath?

By the way, I'm using aws cli --query.