Use the loop variable in keystore init script

[uncycler]

Description

The keystore init script use an undeclared variable instead of the loop (i) variable to check the file existence.

Check List

• [X] Commits are signed per the DCO using --signoff

For any changes to files within Helm chart directories:

• [X] Helm chart version bumped
• [X] Helm chart CHANGELOG.md updated to reflect change

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[hobti01]

you are faster than me :)

[prudhvigodithi]

Hey @hobti01 and @uncycler does this PR fix this issue https://github.com/opensearch-project/helm-charts/issues/446 ?

[prudhvigodithi]

@uncycler thanks a lot for the contribution, closing this PR in favor of https://github.com/opensearch-project/helm-charts/pull/445.