CMake: Fix Symlinks for Exe Search

In WarpX, we also build a symlink `warpx` that points to the latest
build executable. Skip this one in our search for CMake executables.

Author: ax3l

suite.py

@@ -2,6 +2,7 @@
 import json
 import os
 import glob
+from pathlib import Path
 import shutil
 import sys
 import test_util
@@ -1245,8 +1246,9 @@ def build_test_cmake(self, test, opts="",  outfile=None):
                         for f in filenames:
                             f_path = os.path.join(root, f)
                             if os.access(f_path, os.X_OK):
-                                path_to_exe = f_path
-                                break
+                                if not Path(f_path).is_symlink():
+                                    path_to_exe = f_path
+                                    break
                         if path_to_exe is not None:
                             break