Support for FetchConfig on all provider types in Helm Chart

**User Story**

As an operator, I would like to deploy CAPI Operator Helm Chart with predefined set of providers and be able to specify FetchConfig for all kinds; currently, only infrastructure providers support it.

I believe this logic (in `templates/infra.yaml`) should be extended to the rest of templates
```
{{- if and (kindIs "map" $.Values.fetchConfig) (hasKey $.Values.fetchConfig $infrastructureName) }}
{{- range $key, $value := $.Values.fetchConfig }}
{{- if eq $key $infrastructureName }}
fetchConfig:
{{- range $k, $v := $value }}
{{ $k }}: {{ $v }}
{{- end }}
{{- end }}
{{- end }}
{{- end }}
```

/kind feature

Start with templates/infra.yaml and inspect the other Helm chart templates to identify provider types that lack the existing FetchConfig handling. Compare their rendering logic with the infrastructure template, then verify that a configured FetchConfig is emitted for every provider type; no specific test file is named in the issue.

Written by the indexing model from the issue text.