@types/request is added as dependency instead of dev dependency

[josephdpurcell-five9]

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Link to the code that reproduces this issue. A link to a public Github Repository or gist with a minimal reproduction.

https://github.com/googleapis/retry-request/blob/main/package.json#L33

A step-by-step description of how to reproduce the issue, based on the linked reproduction.

1. npm i retry-request
2. notice @types/request is installed

A clear and concise description of what the bug is, and what you expected to happen.

Expectation is @types/request is not installed

A clear and concise description WHY you expect this behavior, i.e., was it a recent change, there is documentation that points to this behavior, etc. **

I expect this behavior because @types packages generally are for types and not required for the function of the package.

In this particular case, I'm trying to install form-data v4 which is required by gaxios 6.7.1 (see https://github.com/googleapis/gaxios/blob/v6.7.1/package.json#L62 but more specifically https://github.com/googleapis/gaxios/blob/v6.7.1/src/gaxios.ts#L336). However, I cannot do that ultimately because retry-request:

node_modules/@types/request/node_modules/form-data
  form-data@"^2.5.0" from @types/[email protected]
  node_modules/@types/request
    @types/request@"^2.48.8" from [email protected]
    node_modules/@google-cloud/tasks/node_modules/retry-request
      retry-request@"^7.0.0" from [email protected]
      node_modules/@google-cloud/tasks/node_modules/google-gax
        google-gax@"^4.0.4" from @google-cloud/[email protected]
        node_modules/@google-cloud/tasks