COO-1597: Raise memory limit of observability-operator deploy

[muellerfabi]

On a larger OCP 4.18 cluster with 66 nodes observability-operator 1.3.0 gets OOMKilled right after start.

Issue is reported in https://access.redhat.com/support/cases/#/case/04368491
Issue is tracked in https://issues.redhat.com/browse/COO-1597

[openshift-ci]

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[openshift-ci]

Hi @muellerfabi. Thanks for your PR.

I'm waiting for a rhobs member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[simonpasquier]

/retitle COO-1597: Raise memory limit of observability-operator deploy

while it might help the reported case, I think that we should also document how users can customize the out-of-the box limits and where the current limits fit because I'm sure that we'll get other reports in the future (https://github.com/operator-framework/operator-lifecycle-manager/blob/master/doc/design/subscription-config.md#resources).

[openshift-ci-robot]

@muellerfabi: This pull request references COO-1597 which is a valid jira issue.

Warning: The referenced jira issue has an invalid target version for the target branch this PR targets: expected the bug to target the "4.22.0" version, but no target version was set.

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In response to this:

On a larger OCP 4.18 cluster with 66 nodes observability-operator 1.3.0 gets OOMKilled right after start.

Issue is reported in https://access.redhat.com/support/cases/#/case/04368491
Issue is tracked in https://issues.redhat.com/browse/COO-1597

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the openshift-eng/jira-lifecycle-plugin repository.