test(node): Add pg-native tests

[onurtemizkan]

Moved the pg and pg-native dependencies inside the test suite. This keeps libpq out of the root yarn.lock.

@AbhiPrasad, would this resolve the concerns in #15464?

[codecov]

❌ 1 Tests Failed:

Tests completed	Failed	Passed	Skipped
4641	1	4640	323

View the top 1 failed test(s) by shortest run time

postgres auto instrumentation should auto-instrument `pg-native` package

Stack Traces | 2.89s run time

Error: Expected envelope item type 'transaction' but got 'event'
    at newEnvelope (.../node-integration-tests/utils/runner.ts:281:21)
    at tryParseEnvelopeFromStdoutLine (.../node-integration-tests/utils/runner.ts:393:15)
    at Socket.<anonymous> (.../node-integration-tests/utils/runner.ts:411:15)
    at Socket.emit (node:events:524:28)
    at addChunk (node:internal/streams/readable:561:12)
    at readableAddChunkPushByteMode (node:internal/streams/readable:512:3)
    at Socket.Readable.push (node:internal/streams/readable:392:5)
    at Pipe.onStreamRead (node:internal/stream_base_commons:189:23)

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[AbhiPrasad]

Sorry for the delay reviewing this. I think approach is good. Do you mind rebasing this?

[onurtemizkan]

@AbhiPrasad, I rebased it. It's ready to go.