♿️(frontend) update footer accessibility disclaimer text

Change footer text from "Accessibility: audit in progress" to "Accessibility:
non-compliant" to accurately reflect current status until formal audit is
completed. Provides more transparent information about accessibility
compliance.

src/frontend/src/locales/en/global.json

@@ -34,7 +34,7 @@
       "datagouv": "data.gouv.fr",
       "legalsTerms": "Legal Notice",
       "data": "Personal Data and Cookies",
-      "accessibility": "Accessibility: audit in progress",
+      "accessibility": "Accessibility: non-compliant",
       "ariaLabel": "new window",
       "code": "Open Source Code Repository",
       "technicalDetails": "Technical Notice"

src/frontend/src/locales/fr/global.json

@@ -34,7 +34,7 @@
       "datagouv": "data.gouv.fr",
       "legalsTerms": "Mentions légales",
       "data": "Données personnelles et cookie",
-      "accessibility": "Accessibilités : audit en cours",
+      "accessibility": "Accessibilités : non conforme",
       "ariaLabel": "nouvelle fenêtre",
       "code": "Dépôt de code Open Source",
       "technicalDetails": "Fiche Technique"