Update browser releases (#28932)

Author: mdn-bot

browsers/bun.json

@@ -776,6 +776,13 @@
         "1.3.6": {
           "release_date": "2026-01-13",
           "release_notes": "https://bun.com/blog/release-notes/bun-v1.3.6",
+          "status": "retired",
+          "engine": "WebKit",
+          "engine_version": "623.1.7"
+        },
+        "1.3.7": {
+          "release_date": "2026-01-27",
+          "release_notes": "https://bun.com/blog/release-notes/bun-v1.3.7",
           "status": "current",
           "engine": "WebKit",
           "engine_version": "623.1.7"