Allow increasing max batch size for metric exporter.

[AkselAllas]

We are running into max metric batch exporting size.

PeriodicExportingMetricReader: metrics export failed (error Error: 8 RESOURCE_EXHAUSTED: grpc: received message larger than max (8081061 vs. 4194304))\n    at doExport (/node_modules/@opentelemetry/sdk-metrics/build/src/export/PeriodicExportingMetricReader.js:75:23)

In Python for example the option to edit exists

Seems that currently only mitigation options are:

• Sending less metrics in the batch export window
• Reducing histogram metric View bucket resolution??

[dyladan]

An example of another project that made this change for reference for making a PR: https://github.com/Azure/azure-functions-nodejs-worker/pull/62

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This issue was closed because it has been stale for 14 days with no activity.