[skip ci][CI] Bump Python version from 3.6 to 3.7 in VitisAI.cmake

This is required because we migrated the default version in which
dependencies are installed, due to Python 3.6 coming to EOL.

Co-authored-by: Elen Kalda <[email protected]>

Author: leandron

cmake/modules/contrib/VitisAI.cmake

@@ -17,9 +17,9 @@
 
 if(USE_VITIS_AI)
   set(PYXIR_SHARED_LIB libpyxir.so)
-  find_package(PythonInterp 3.6 REQUIRED)
+  find_package(PythonInterp 3.7 REQUIRED)
   if(NOT PYTHON)
-    find_program(PYTHON NAMES python3 python3.6)
+    find_program(PYTHON NAMES python3 python3.7)
   endif()
   execute_process(COMMAND "${PYTHON_EXECUTABLE}" "-c"
     "import pyxir as px; print(px.get_include_dir()); print(px.get_lib_dir());"