[chore][receiver/mysql] Migrate away from timing based setup in integration test

[djaglowski]

Resolves #18286

This moves away from a custom docker file w/ a timing based setup script. Instead, we rely on testcontainers to run a script once the container is ready.

Several minor accompanying changes were made here as well:

• Do not grant select permissions to the innodb_metrics table, as it turns out that each user automatically has appropriate row-based permissions to this table. Also remove documentation citing this as a prereq.
• Grant permissions to performance_schema tables, because we were logging errors from failed queries added in [receiver/mysql]: add scraping io_waits metrics #14328.
• Do not consider a lack of replication metrics as an error, since these are expected to be absent unless replication is configured.
• Add a debugging feature to scraperinttest, which allows us to force a failure if any errors are logged by a scraper. This should only be used for developing tests due to a lack or correlation with individual scrapes.

[djaglowski]

@open-telemetry/collector-contrib-approvers, PTAL

[evan-bradley]

Looks good to me, just one question.