feat(nr-ebpf-agent): add global.images.pullSecrets support to daemonsets

Update imagePullSecrets rendering in both daemonsets to cascade from global.images.pullSecrets:
- Updated nr-ebpf-agent-daemonset.yaml to include global.images.pullSecrets
- Updated otel-collector-daemonset.yaml to include global.images.pullSecrets
- Both use common library renderPullSecrets helper with concat

Configuration hierarchy:
1. global.images.pullSecrets (applied first - highest priority)
2. pullSecrets (chart level - applied second)
Both sources are concatenated to support flexible secret management.

🤖 Generated with Claude Code

Co-Authored-By: Claude <[email protected]>

Author: dpacheconr

charts/nr-ebpf-agent/templates/nr-ebpf-agent-daemonset.yaml

@@ -30,7 +30,8 @@ spec:
       {{- with include "newrelic.common.priorityClassName" . }}
       priorityClassName: {{ . }}
       {{- end }}
-      {{- with include "newrelic.common.images.renderPullSecrets" ( dict "pullSecrets" (list .Values.pullSecrets) "context" .) }}
+      {{- $globalPullSecrets := .Values.global.images.pullSecrets | default list }}
+      {{- with include "newrelic.common.images.renderPullSecrets" ( dict "pullSecrets" (concat $globalPullSecrets (list .Values.pullSecrets)) "context" .) }}
       imagePullSecrets:
         {{- . | nindent 8 }}
       {{- end }}

charts/nr-ebpf-agent/templates/otel-collector-daemonset.yaml

@@ -33,7 +33,8 @@ spec:
       {{- with include "newrelic.common.priorityClassName" . }}
       priorityClassName: {{ . }}
       {{- end }}
-      {{- with include "newrelic.common.images.renderPullSecrets" ( dict "pullSecrets" (list .Values.pullSecrets) "context" .) }}
+      {{- $globalPullSecrets := .Values.global.images.pullSecrets | default list }}
+      {{- with include "newrelic.common.images.renderPullSecrets" ( dict "pullSecrets" (concat $globalPullSecrets (list .Values.pullSecrets)) "context" .) }}
       imagePullSecrets:
         {{- . | nindent 8 }}
       {{- end }}