Remove `request`

The request package has been deprecated and must be removed.

Affected packages should either:

1. migrate to the new common http utils (preferable)
2. migrate to use undici as a direct replacement

(2) should be straighforward because at least undici has a WHATWG compatible fetch function, which I presume is a straight swap. Testing, as ever, is the hardbit.

The affected packages appear to be:

@openfn/language-bigquery@2.0.6 (through an old version of our `http`)
@openfn/language-dynamics@0.4.10
@openfn/language-facebook@0.3.2
@openfn/language-khanacademy@0.4.1
@openfn/language-magpi@1.1.2
@openfn/language-maximo@0.4.1
@openfn/language-medicmobile@0.4.2
@openfn/language-mogli@0.4.1 (through jsforce)
@openfn/language-nexmo@0.4.5
@openfn/language-primero@2.11.10 (through `nexmo`)
@openfn/language-resourcemap@0.3.2
@openfn/language-salesforce@4.6.2 (through `jsforce`)
@openfn/language-smpp@1.3.1
@openfn/language-vtiger@1.2.1

Inspect the listed affected adaptor packages and their dependency trees to locate direct or transitive uses of request, starting with the packages named in the issue. Migrate to the common HTTP utilities where possible or to undici, then verify that request is removed and the affected package tests still pass.