Draft: Add resources configuration to initcontainers

[aigptteam]

What this PR does / why we need it:

Allow to deploy that chart on Kube clusters which force to have resources configuration for every pods (even initContainers)

Checklist

• Add ressources to other components
• Update values
• Update doc

[sre-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[sre-ci-robot]

Welcome @aigptteam! It looks like this is your first PR to zilliztech/milvus-helm 🎉

[haorenfsa]

@aigptteam Hi, thank you for providing this patch, please make sure that the sign-off is added before we cloud merge it.

check this link for detail https://github.com/zilliztech/milvus-helm/pull/60/checks?check_run_id=21731562172