Request body property is coerced e.g. ("123" coerced to123)

Hi, I am using openapi: 3.0.2 with express-openAPI-validator ^2.0.0 I am getting the following problem: When I am using

new OpenApiValidator({
      apiSpec: this.openApiPath,
      validateResponses: false,
      **validateRequests:** true,
    }).install(this.app);

its changing the integer values to string like

body: { a: 1}

and I am getting

body: {a:"1"}

Please fix this problem as I am getting validation issue due to this

[cdimascio]

@chittolina would you be interested in taking the first pass at solving this?

Some pointers:

1. The following function creates an AJV validator for requests. It receives its options when a new RequestValidator is constructed. Basically, we need to create two validators here. 1 as-is and a second with the option coerceTypes: false.
2. When validation occurs e.g. here, we need two separate validator calls:
   1. uses the existing validator and does not validate the body
   2. uses the new validator (i.e. th one withcoerceTypes:false), and validates only the body
3. Finally, check both validators for errors here check both validators for errors.

Note: to quickly get a development environment setup, you can follow the instructions in [CONTRIBUTING.md]. You can also click the Gitpod button at the top of this issue or the Gitpod badge in the README.md to setup a cloud dev env in one click.

[cdimascio]

fixed in v4.1.0