chore(deps): update https://github.com/microsoft/vcpkg digest to 20a72ce (#30)

Co-authored-by: msclock-bot[bot] <163820484+msclock-bot[bot]@users.noreply.github.com>

Author: msclock-bot[bot]

vcpkg.json

@@ -2,7 +2,7 @@
   "$schema": "https://raw.githubusercontent.com/microsoft/vcpkg-tool/main/docs/vcpkg.schema.json",
   "name": "cppfront-practice",
   "description": "Practice based on cppfront",
-  "builtin-baseline": "26abb5b33f976246a5f2cdc45cdd073d51caff06",
+  "builtin-baseline": "20a72ce99b12dd0ebfea5d39f32681bd68b19d03",
   "homepage": "https://github.com/msclock/cppfront-practice",
   "dependencies": [
     "cppfront",