build: try installing jsoncpp with vcpkg (2)

.github/workflows/continuous-building.yml

@@ -31,7 +31,6 @@ jobs:
         vcpkgDirectory: '${{ github.workspace }}/vcpkg'
         vcpkgGitCommitId: cf4ebef2294e164875ce17d7937f44d3e3ea156e
         runVcpkgInstall: true
-        runVcpkgFormatString: '[`install`, `jsoncpp`]'
 
     - uses: actions/checkout@v4
       with:

vcpkg.json

@@ -0,0 +1,6 @@
+{
+  "$schema": "https://raw.githubusercontent.com/microsoft/vcpkg-tool/main/docs/vcpkg.schema.json",
+  "dependencies": [
+    "jsoncpp"
+  ]
+}