fix: add missing nodeSelector and tolerations to tracee-operator

[ndegory]

1. Explain what the PR does

Allow options to schedule the tracee operator when deploying with the Helm chart

• fix: add missing nodeSelector and tolerations to tracee-operator deployment
• fix: add missing imagePullSecrets for tracee-operator

2. Explain how to test it

cat > test.yaml <<EOF
operator:
  nodeSelector:
    kubernetes.io/os: linux
  tolerations:
    - key: "workload"
      operator: "Equal"
      value: "security"
      effect: "NoSchedule"
EOF
helm template tracee ./deploy/helm/tracee --show-only templates/deploy.yaml
# shows no tolerations and no nodeSelect
helm template tracee ./deploy/helm/tracee --show-only templates/deploy.yaml -f test.yaml
# shows the specified nodeSelector and tolerations

3. Other comments

[ndegory]

@josedonizetti this PR is ready for review, thank you