What kind of PR is this?

Required: Mark one of the following that is applicable:

• kind/feature
• kind/improvement
• kind/deprecation
• kind/documentation
• kind/clean-up
• kind/bug
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Optional: Mark one or more of the following that are applicable:

• kind/admin-change
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What does this PR do / why do we need this PR?

Add tolerations for coredns so it doesn't get stuck in "pending" on cluster creation.

• Fixes OpenStack Cloud provider init failure on new clusters v2.24.0 #350

Additional information to reviewers

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Checklist

• Proper commit message prefix on all commits
• Change checks:
  • The change is transparent
  • The change is disruptive
  • The change requires no migration steps
  • The change requires migration steps
• Metrics checks:
  • The metrics are still exposed and present in Grafana after the change
  • The metrics names didn't change (Grafana dashboards and Prometheus alerts are not affected)
  • The metrics names did change (Grafana dashboards and Prometheus alerts were fixed)
• Logs checks:
  • The logs do not show any errors after the change
• Network Policy checks:
  • Any changed pod is covered by Network Policies
  • The change does not cause any dropped packages in the NetworkPolicy Dashboard
• Pod Security Policy checks:
  • Any changed pod is covered by Pod Security Admission
  • Any changed pod is covered by Gatekeeper Pod Security Policies
  • The change does not cause any pods to be blocked by Pod Security Admission or Policies
• Falco checks:
  • The change does not cause any alerts to be generated by Falco