chore(deps): update https://github.com/microsoft/vcpkg digest to 61c70ce

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": "856505bb767458c99d8e3c3ed441f59a058d3687",
+  "builtin-baseline": "61c70ce627a2a4ffff809f887e4188ff39ce0a14",
   "homepage": "https://github.com/msclock/cppfront-practice",
   "dependencies": [
     "cppfront",