Add an option to configure batch size for Promise.all for resolveDocument function

Is your feature request related to a problem? Please describe.

We have a huge API definition, with more than 2 thousand YAML files with refs. When we run npx @redocly/cli lint command in AWS lambda we faced with File descriptors limitation and as a result, a lint command throws an error. It could be fixed if we can pass MAX_BATCH_SIZE_FILES_LIMIT to @redocly/cli lint command.

Describe the solution you'd like

Add an option to configure MAX_BATCH_SIZE_FILES_LIMIT. It should be unlimited by default.

Code place where we should apply this configuration:
resolved = await Promise.all(resolvePromises);

Describe alternatives you've considered

Do not add this configuration and just pre-bundle OpenAPI definition either locally or with CI/CD.

Additional context

Front conversations

Start in packages/core/src/resolve.ts at the Promise.all call around line 233, then trace how the npx @redocly/cli lint command receives configuration. Add a configurable MAX_BATCH_SIZE_FILES_LIMIT with unlimited behavior by default, and verify that large YAML reference sets can be resolved without exceeding file-descriptor limits.