Expand textarea for CA cert in cluster form

The current default is too small
for a user to see what they have pasted in.

app/views/clusters/clusters/user/_form.html.haml

@@ -25,6 +25,7 @@
       help: '%{help_text} %{help_link}'.html_safe % { help_text: api_url_help_text, help_link: more_info_link }
 
     = platform_kubernetes_field.text_area :ca_cert,
+      rows: '10',
       placeholder: s_('ClusterIntegration|Certificate Authority bundle (PEM format)'),
       label: s_('ClusterIntegration|CA Certificate'), label_class: 'label-bold',
       help: '%{help_text} %{help_link}'.html_safe % { help_text: ca_cert_help_text, help_link: more_info_link }

app/views/clusters/platforms/kubernetes/_form.html.haml

@@ -19,7 +19,7 @@
 
     - copy_ca_cert_btn = clipboard_button(text: platform.ca_cert, title: s_('ClusterIntegration|Copy CA Certificate'),
       class: 'input-group-text btn-default') if cluster.read_only_kubernetes_platform_fields?
-    = platform_field.text_area :ca_cert, class: 'js-select-on-focus', rows: '5',
+    = platform_field.text_area :ca_cert, class: 'js-select-on-focus', rows: '10',
     readonly: cluster.read_only_kubernetes_platform_fields?,
     placeholder: s_('ClusterIntegration|Certificate Authority bundle (PEM format)'),
     label: s_('ClusterIntegration|CA Certificate'), label_class: 'label-bold',

changelogs/unreleased/cluster-form-ca-cert-larger.yml

+---
+title: Expand textarea for CA cert in cluster form
+merge_request: 32508
+author:
+type: fixed