[335] - Istio specific labels and mTLS support

Following Elastic's guide to using istio with ECK + operator since configuration has been updated since we last updated.

https://www.elastic.co/guide/en/cloud-on-k8s/current/k8s-service-mesh-istio.html

• Migrating to using istio mTLS to handle SSL connection between communication to Elasticsearch.
• Adding more labels to work nicer with istio service mesh.

Opened in relation to https://repo1.dso.mil/platform-one/big-bang/bigbang/-/issues/335

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• 62cce8c3 - test: Temp commenting out istio mTLS options

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• 2abf7be9 - test: Temp removing istio mTLS options

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• 4a2866c7 - feat: Adding back istio mTLS settings

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• 1d7cac1b - chore: Bumping chart version for MR

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• 1d7cac1b...b0fca0d6 - 2 commits from branch main
• 359df1bb - Merge branch 'main' into 'fluent-bit-tuning'

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• 3b0e4b18 - chore: Bumping chart version for MR

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