Change dummy SHA for vcpkg portfile

vcpkg now expects 0 as a dummy argument that will cause it to print the
real value that the user should insert as the argument.

Author: friendlyanon

cmake-init/templates/vcpkg/portfile.cmake

@@ -8,7 +8,7 @@ vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
     REPO <repo>
     REF <ref>
-    SHA512 1
+    SHA512 0
     HEAD_REF master
 )