Added missing schedulerName definition to pod template

[itaynvn-runai]

What this PR does / why we need it:

when defining in values.yaml:

agentk8sglue:
  basePodTemplate:
    schedulerName: different-scheduler

the value isn't propagated to the configmap eventually created, and pods use the default-scheduler as a result.

Checklist

• Reviewed the CONTRIBUTING.md guide (required)
• Verify the work you plan to merge addresses an existing issue (If not, open a new one) (required)
• Check your branch with helm lint (required)
• Update version in Chart.yaml according semver rules (required)
• Substitute annotations section in Chart.yaml annotating implementations (useful for Artifecthub changelog) (required)
• Update chart README using helm-docs (required)

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer: