build, msvc: Update vcpkg manifest baseline

This change updates the vcpkg manifest baseline from the "2025.03.19
Release" to the "2025.08.27 Release", with the following package
changes:
 - boost: 1.87.0 --> 1.88.0
 - qtbase: 6.8.2#1 -> 6.9.1
 - qttools: 6.8.2 -> 6.9.1
 - sqlite3: 3.49.1 --> 3.50.4

Author: hebasto

vcpkg.json

@@ -1,7 +1,7 @@
 {
-  "$comment": "The builtin-baseline corresponds to 2025.03.19 Release",
+  "$comment": "The builtin-baseline corresponds to 2025.08.27 Release",
   "$schema": "https://raw.githubusercontent.com/microsoft/vcpkg-tool/main/docs/vcpkg.schema.json",
-  "builtin-baseline": "b02e341c927f16d991edbd915d8ea43eac52096c",
+  "builtin-baseline": "120deac3062162151622ca4860575a33844ba10b",
   "dependencies": [
     "boost-multi-index",
     "boost-signals2",