Support prom-client v15

[cbix]

The peer-dependency prom-client recently released version 15.0.0, however when installing that I get

npm ERR! Could not resolve dependency:
npm ERR! peer prom-client@"^12.0.0 || ^13.0.0 || ^14.0.0" from @bmatei/[email protected]
npm ERR! node_modules/@bmatei/apollo-prometheus-exporter
npm ERR!   @bmatei/apollo-prometheus-exporter@"^3.0.0" from the root project

I didn't test for full compatibility yet but if it's not a breaking change, it might be sufficient to just add || ^15.0.0.

[glensc]

@cbix so send a PR?

maybe even better add >= 15, so, that if some version is broken it can't be dealt with, otherwise assume working.

[lala7573]

It doesn't work when you simply update the version. It has type error

@bmatei/apollo-prometheus-exporter/context.d.ts:31:28 - error TS2314: Generic type 'DefaultMetricsCollectorConfiguration<T>' requires 1 type argument(s).

[Jhonas0403]

I have the same error, at the moment I work with prom-client v.14.0.2 but when we work with prom client v15.0.0 we have the same error of @lala7573

[tigerabrodi]

its interesting how they're using version 3 of prometheus and 15.1 of prom-client: https://github.com/aahlborn/omnivore/blob/67c5de6512ebdf7bf3b03390d928507f34a54a41/packages/api/package.json