add missing tolerations

[prksu]

What this PR does / why we need it:

Add missing tolerations in the template. The README said it supports tolerations but unfortunately, there is no tolerations in the template yet.

Special notes for your reviewer:

Checklist

• [x] DCO signed
• [x] Chart Version bumped
• [x] Variables are documented in the README.md

[banzo]

Nice catch, thanks!