[.github/workflows/github-actions.yml] Add missing vcpkg.json

Author: SamuelMarks

.github/workflows/github-actions.yml

@@ -58,7 +58,7 @@ jobs:
         if: matrix.os == 'windows-latest' && steps.cache-vcpkg.outputs.cache-hit != 'true'
 
       - name: Install vcpkg ports (macOS, Linux)
-        run: ./vcpkg/vcpkg install --classic "$(jq '.dependencies[] | select(type == "string")')"
+        run: ./vcpkg/vcpkg install --classic "$(jq '.dependencies[] | select(type == "string")'  vcpkg.json)"
         if: matrix.os != 'windows-latest' && steps.cache-vcpkg.outputs.cache-hit != 'true'
 
       - name: configure (with vcpkg on Windows)