[Security Solution] List all policies to display integrations properly

[jkelas]

Resolves: #200167

Summary

Increase number of fetched package policies to the maximum. Currently only the first 20 policies (the first page) are returned, which results in treating all remaining ones as disabled.
I am proposing the simplest change of increasing the limit here to the maximum. There shouldn't be too many policies there, e.g. in the reproduction I am running there are 23 instead of 20.
If that is not enough, however, the alternative would be to discover that there are more policies than the specified limit and the next page(s) would have to be collected and the results added to the final list.

Checklist

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• Unit or functional tests were updated or added to match the most common scenarios

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[elasticmachine]

💛 Build succeeded, but was flaky

• Buildkite Build
• Commit: 8c98c2a

Failed CI Steps

• Jest Tests #3

Test Failures

• [job] [logs] Jest Tests #3 / useActionStatus should set action statuses on init

Metrics [docs]

✅ unchanged

cc @jkelas