ensure prometheus-cpp depends on the curl build

Author: dbarker

install/cmake/CMakeLists.txt

@@ -288,6 +288,7 @@ set(prometheus-cpp_ARGS
     ${CMAKE_BINARY_DIR}/external/prometheus-cpp
     INSTALL_DIR
     ${CMAKE_INSTALL_PREFIX}
+    DEPENDS zlib curl
     CMAKE_ARGS
     "${CMAKE_OPTIONS}"
     "-DENABLE_TESTING=OFF"
@@ -302,7 +303,6 @@ if(EXISTS "${OTELCPP_SOURCE_DIR}/third_party/prometheus-cpp/.git")
 else()
   ExternalProject_Add(
     prometheus-cpp
-    DEPENDS zlib curl
     GIT_REPOSITORY "https://github.com/jupp0r/prometheus-cpp.git"
     GIT_TAG ${prometheus-cpp_GIT_TAG}
     GIT_SHALLOW ON