[flatbuffers] update to 25.9.23 (#47505)

ports/flatbuffers/portfile.cmake

@@ -4,7 +4,7 @@ vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
     REPO google/flatbuffers
     REF "v${VERSION}"
-    SHA512 7e6ae36b37c9fd322456312504156c8241852e07a2a23de6805eb2328b61b9f42b839d04b839f9d97623195721308437a1163a25071ca2af0d00a6417da74822
+    SHA512 259ae6c0b024c19c882d87c93d6ba156c15f14a61b11846170ac1b9e9c051cd3e80ae93cfe20ccb1aa30f2085cdbd4127ffa229b42cabbfed6b035ca4851c127
     HEAD_REF master
     PATCHES
         fix-uwp-build.patch

ports/flatbuffers/vcpkg.json

@@ -1,6 +1,6 @@
 {
   "name": "flatbuffers",
-  "version": "25.2.10",
+  "version": "25.9.23",
   "description": "FlatBuffers is a cross platform serialization library architected for maximum memory efficiency. It allows you to directly access serialized data without parsing/unpacking it first, while still having great forwards/backwards compatibility.",
   "homepage": "https://google.github.io/flatbuffers/",
   "license": "Apache-2.0",

versions/baseline.json

@@ -2965,7 +2965,7 @@
       "port-version": 0
     },
     "flatbuffers": {
-      "baseline": "25.2.10",
+      "baseline": "25.9.23",
       "port-version": 0
     },
     "flatbush": {

versions/f-/flatbuffers.json

@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "34977bf5c6ebc9b593376b223f82a21e1c945d42",
+      "version": "25.9.23",
+      "port-version": 0
+    },
     {
       "git-tree": "10e9aecde053bfab1f5de679ed28060c1304e9bf",
       "version": "25.2.10",