🤖 src/ghes-releases/lib/enterprise-dates.json update (#60424)

Co-authored-by: github-merge-queue <118344674+github-merge-queue@users.noreply.github.com>

Author: docs-bot

src/ghes-releases/lib/enterprise-dates.json

@@ -229,13 +229,13 @@
   },
   "3.14": {
     "releaseDate": "2024-08-06",
-    "deprecationDate": "2026-03-17",
+    "deprecationDate": "2026-04-09",
     "releaseCandidateDate": "2024-08-06",
     "generalAvailabilityDate": "2024-08-27"
   },
   "3.15": {
     "releaseDate": "2024-11-12",
-    "deprecationDate": "2026-03-17",
+    "deprecationDate": "2026-04-09",
     "releaseCandidateDate": "2024-11-12",
     "generalAvailabilityDate": "2024-12-03"
   },