refactor(authentication): streamline secret reference assignment in deployment.yaml

- Introduced a variable for the target secret name to improve readability and maintainability of the secret injection logic.
- This change enhances the clarity of the deployment configuration for the authentication module.

Signed-off-by: zhenyus <zhenyus@mathmast.com>

freeleaps/helm-pkg/authentication/templates/authentication/deployment.yaml

@@ -107,11 +107,12 @@ spec:
                   key: {{ $key | snakecase | upper }}
             {{- end }}
             # inject from secret created by FreeleapsSecret object
+            {{ $targetSecretName := .Values.authentication.secrets.target.name }}
             {{- range .Values.authentication.secrets.data }}
             - name: {{ .key | snakecase | upper }}
               valueFrom:
                 secretKeyRef:
-                  name: {{ .Values.authentication.secrets.target.name }}
+                  name: {{ $targetSecretName }}
                   key: {{ .key }}
             {{- end }}
 {{- if .Values.logIngest.enabled }}