revert layouts version

Signed-off-by: kkk777-7 <kota.kimura0725@gmail.com>

Author: kkk777-7

site/layouts/shortcodes/helm-version.html

@@ -27,8 +27,8 @@
 {{- "v1.8.3" -}}
 {{- end -}}
 {{- with (strings.HasPrefix $pagePrefix "v1.9") -}}
-{{- "v1.9.1" -}}
+{{- "v1.9.0" -}}
 {{- end -}}
 {{- with (strings.HasPrefix $pagePrefix "docs") -}}
-{{- "v1.9.1" -}}
+{{- "v1.9.0" -}}
 {{- end -}}

site/layouts/shortcodes/yaml-version.html

@@ -27,8 +27,8 @@
 {{- "v1.8.3" -}}
 {{- end -}}
 {{- with (strings.HasPrefix $pagePrefix "v1.9") -}}
-{{- "v1.9.1" -}}
+{{- "v1.9.0" -}}
 {{- end -}}
 {{- with (strings.HasPrefix $pagePrefix "docs") -}}
-{{- "v1.9.1" -}}
+{{- "v1.9.0" -}}
 {{- end -}}