[instrumentation-mongodb]: add support for v7

[david-luna]

Is your feature request related to a problem? Please describe

There was a new major release of mongodb package las month (Nov 6th). This version is not supported by @opentelemetry/instrumentation-mongodb package.

Describe the solution you'd like to see

@opentelemetry/instrumentation-mongodb to instrumenta also the new major version. According to the summary of changes the API hasn't changed so it should be quite straight forward.

ref: https://github.com/mongodb/node-mongodb-native/blob/HEAD/etc/notes/CHANGES_7.0.0.md

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[abhilash-sivan]

Hi, I would like to work on this issue. Could you please assign it to me? Thanks

[david-luna]

done in #3283