Fix 1458: Helm template bug: logstream

[AdheipSingh]

Fixes #1458.

Description

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This PR has:

• [ ] been tested to ensure log ingestion and log query works.
• [ ] added comments explaining the "why" and the intent of the code wherever would not be obvious for an unfamiliar reader.
• [ ] added documentation for new or modified features or behaviors.

Summary by CodeRabbit

• Chores
  • Updated local mode secret configuration structure in deployment templates.

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