[ConSan] ConSan env var should be cache invalidating (#8332)

Make the TRITON_ENABLE_EXPERIMENTAL_CONSAN cache invalidating and add
tests verifying that there is no collision between consan enabled and
disabled.

Author: pawelszczerbuk

include/triton/Tools/Sys/GetEnv.hpp

@@ -43,6 +43,7 @@ inline const std::set<std::string> CACHE_INVALIDATING_ENV_VARS = {
     "ALLOW_LHS_TMEM_LAYOUT_CONVERSION",
     "TRITON_F32_DEFAULT",
     "TRITON_PREFER_TMEM_16x256_LAYOUT",
+    "TRITON_ENABLE_EXPERIMENTAL_CONSAN",
     // clang-format on
 };