chore(deps): update https://github.com/microsoft/vcpkg digest to 4a9af5e

Author: msclock-bot[bot]

vcpkg.json

@@ -2,7 +2,7 @@
   "$schema": "https://raw.githubusercontent.com/microsoft/vcpkg-tool/main/docs/vcpkg.schema.json",
   "name": "pybit7z",
   "description": "A wrapper based on bit7z.",
-  "builtin-baseline": "65be7019941e1401e02daaba0738cab2c8a4a355",
+  "builtin-baseline": "4a9af5e5efcb24d0c8fcdf82dacf3b2b780b99f8",
   "homepage": "https://github.com/msclock/pybit7z",
   "dependencies": [
     "pybind11",