Update label and hint text for privacy notice question

app/views/form/_textarea_question.html.erb

@@ -1,7 +1,7 @@
 <%= f.govuk_text_area question.id.to_sym,
     caption: caption && !page_header.present? ? { text: caption.html_safe, size: "l" } : nil,
     label: { text: question.header.html_safe, size: !page_header.present? ? "l" : "m", tag: !page_header.present? ? "h1" : "h2" },
-    hint: { text: question.hint_text },
+    hint: { text: question.hint_text.html_safe },
     width: question.width ? question.width : nil,
     **stimulus_html_attributes(question)
 %>

config/forms/2021_2022.json

@@ -15,8 +15,8 @@
               "questions": {
                 "gdpr_acceptance": {
                   "check_answer_label": "Privacy notice seen",
-                  "header": "Has the tenant or buyer seen the DLUHC privacy notice?",
+                  "header": "Has the tenant or buyer seen the Department for Levelling Up, Housing and Communities (DLUHC) privacy notice?",
-                  "hint_text": "",
+                  "hint_text": "You must <a class=\"govuk-link\" href=\"/files/privacy-notice.pdf\">show the privacy notice</a> to the tenant or buyer before you can use this service.",
                   "type": "radio",
                   "answer_options": {
                     "0": "Yes",