MDEV-35607 Compile error with gcc-15 (signal returns)

set policy CMP0067 to NEW, this will make try_compile to use
project-wide CMAKE_C_STANDARD and CMAKE_CXX_STANDARD settings

CMakeLists.txt

@@ -31,7 +31,7 @@ ENDIF()
 # in RPM's:
 
 #set(CPACK_RPM_SPEC_MORE_DEFINE "%define __spec_install_post /bin/true")
-FOREACH(p CMP0022 CMP0046 CMP0040 CMP0048 CMP0054 CMP0074 CMP0075 CMP0069 CMP0135)
+FOREACH(p CMP0022 CMP0046 CMP0040 CMP0048 CMP0054 CMP0067 CMP0074 CMP0075 CMP0069 CMP0135)
   IF(POLICY ${p})
     CMAKE_POLICY(SET ${p} NEW)
   ENDIF()