Expose certifier and deps.dev batch size and add optional latency (defaults to none)

[pxp928]

Description of the PR

Expose certifier and deps.dev batch size and add optional latency (defaults to none)

// set the batch size for the package pagination query
set.Int("certifier-batch-size", 60000, "sets the batch size for pagination query for the certifier")
// add artificial latency to throttle the certifier
set.String("certifier-latency", "", "sets artificial latency on the certifier. Defaults to empty string (not enabled) but can set m, h, s...etc")

// deps.dev
// add artificial latency to throttle deps.dev
set.String("deps-dev-latency", "", "sets artificial latency on the deps.dev collector. Defaults to empty string (not enabled) but can set m, h, s...etc")

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 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]

Looks good.
Keep in mind that the main demo and postgres compose setups don't use guac.yaml now. So if you want to have non-default options there you should edit those composes:
https://github.com/guacsec/guac/releases/latest/download/guac-demo-compose.yaml
https://github.com/guacsec/guac/blob/main/container_files/guac-postgres-compose.yaml