fix: Remove errant whitespace from deployment.yaml

[sabriel27]

What this PR does / Why we need it:

There are a few whitespaces in the manifests/charts/aeraki/deployment.yaml helm chart that breaks the rendering process.

Pre-Submission Checklist:

• [x] Did you explain what problem does this PR solve? Or what new features have been added?
• [ ] Have you added related test cases?
• [ ] Have you modified the related document?
• [x] Is this PR backward compatible?