Fix indent for imagePullSecrets

[bismarck]

Getting the following error when image.pullSecrets is set:

Error: YAML parse error on beyla/templates/daemon-set.yml: error converting YAML to JSON: yaml: line 45: did not find expected key
helm.go:84: [debug] error converting YAML to JSON: yaml: line 45: did not find expected key
YAML parse error on beyla/templates/daemon-set.yml

This change fixes the indent for imagePullSecrets in daemon-set.yaml.

[CLAassistant]

All committers have signed the CLA.

[mariomac]

Thanks for the fix!!