[cmake] refine find arrow condition

cmake fails if `arrow` not installed while ARROW_VERSION is not defined

Author: linev

cmake/modules/FindArrow.cmake

@@ -37,12 +37,14 @@ if(DEFINED ARROW_FOUND)
 endif()
 
 find_package(Arrow CONFIG QUIET)
-if(${Arrow_FOUND} AND ${ARROW_VERSION} VERSION_GREATER_EQUAL 10.0.0)
-  set(ARROW_FOUND ${Arrow_FOUND})
-  set(ARROW_SHARED_LIB Arrow::arrow_shared)
-  set(ARROW_STATIC_LIB Arrow::arrow_static)
-  message(STATUS "Found Arrow version ${ARROW_VERSION}")
-  return()
+if(${Arrow_FOUND})
+  if(${ARROW_VERSION} VERSION_GREATER_EQUAL 10.0.0)
+     set(ARROW_FOUND ${Arrow_FOUND})
+     set(ARROW_SHARED_LIB Arrow::arrow_shared)
+     set(ARROW_STATIC_LIB Arrow::arrow_static)
+     message(STATUS "Found Arrow version ${ARROW_VERSION}")
+     return()
+  endif()
 endif()
 
 include(FindPkgConfig)