Remove faulty suffix trim from Helm deployment (#357)

Description of changes:
Removes a suffix trim character from the Helm deployment template. This trim was causing the string to concatenate with the next line and create an error. Removing this ensures it stays as a separate line if the `priorityClassName` is specified.

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Author: RedbackThomson

templates/helm/templates/deployment.yaml

@@ -106,7 +106,7 @@ spec:
       affinity: {{ toYaml .Values.deployment.affinity | nindent 8 }}
       {{ end -}}
       {{ if .Values.deployment.priorityClassName -}}
-      priorityClassName: {{ .Values.deployment.priorityClassName -}}
+      priorityClassName: {{ .Values.deployment.priorityClassName }}
       {{ end -}}
       hostIPC: false
       hostNetwork: false