fix: ignore XLA version compatibility warnings in Sella and Arkane runs

Added 'pjrt_executable.cc' to the list of ignorable phrases/keywords in both
xTB adapter (for Sella runs) and Arkane runs. These warnings are harmless
and were causing incorrect 'run failed' errors in CI.

Author: kfir4444

arc/job/adapters/xtb_adapter.py

@@ -328,7 +328,8 @@ def opt_ts(self):
                            'futurewarning:', 
                            'userwarning:', 
                            'deprecationwarning:', 
-                           'warnings.warn('
+                           'warnings.warn(',
+                           'pjrt_executable.cc'
                            ]
         real_errors = []
         for line in stderr:

arc/statmech/arkane.py

@@ -545,7 +545,8 @@ def run_arkane(statmech_dir: str) -> bool:
         ignorable_phrases = [
             "Open Babel Warning",
             "Accepted unusual valence",
-            "=============================="
+            "==============================",
+            "pjrt_executable.cc",
         ]
 
         real_errors = []