Make cmake dependencies case sensitive

CMakeLists.txt

@@ -5,8 +5,8 @@ set(CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake/modules")
 find_package(JSONC REQUIRED)
 find_package(OpenSSL REQUIRED)
 find_package(libwebsockets REQUIRED)
-find_package(ROOT REQUIRED COMPONENTS Net Netx Tree XMLIO PROOF)
-find_package(zlib REQUIRED)
+find_package(ROOT REQUIRED COMPONENTS Net Netx Tree XMLIO Proof)
+find_package(ZLIB REQUIRED)
 foreach(FEATURE xrootd xml)
   if(NOT ROOT_${FEATURE}_FOUND)
     message(FATAL_ERROR "ROOT was built without ${FEATURE} support (required)")