* allow specifying the nodeSelector for the init jobs
* Use pulsar_metadata.nodeSelector
Co-authored-by: samuel <samuel.verstraete@aprimo.com>
### Motivation
When deploying pulsar to an AKS cluster with windows nodepools i was unable to specify that the Jobs of the initalize release had to run on linux nodes. With the change i can now specify a node selector for the init jobs.
### Modifications
add nodeSelector on pulsar_init and bookie_init
### Verifying this change
- [ ] Make sure that the change passes the CI checks.
8f033bd1a5