Rate limiting outgoing requests

[nathannaveen]

Description of the PR

• Fixes [feature] Rate limit outgoing http requests #2011
• Rate limits GRPC requests for deps dev
• Rate limits http requests for osv and ClearlyDefined
• Tests for the rate limiters

PR Checklist

• All commits have a Developer Certificate of Origin (DCO) -- they are generated using -s flag to git commit.
• All new changes are covered by tests
• If GraphQL schema is changed, make generate has been run
• If GraphQL schema is changed, GraphQL client updates/additions have been made
• If OpenAPI spec is changed, make generate has been run
• If ent schema is changed, make generate has been run
• If collectsub protobuf has been changed, make proto has been run
• All CI checks are passing (tests and formatting)
• All dependent PRs have already been merged

[jeffmendoza]

Logic looks good now. Sill some incorrect import grouping and deleted comments.

[pxp928]

@nathannaveen looks like some lint and test errors

[nathannaveen]

Thanks @pxp928, I have got the lint and tests working