fix(runtest.py): A workaround to bypass errors that occur when deleting temporary files (#4093)

- Replace sys.exit with exceptions for better error handling in test assertions
- Update exception handling in compile_wast_to_wasm to catch all exceptions
- Improve error messages and logging
- Use `--ignore-whitespace` option for git apply in spec_test function
- Use raw string notation for regex patterns.  *The "SyntaxWarning: invalid escape sequence" in Python The warning has been upgraded to SyntaxWarning since Python 3.12, and it is expected to become a SyntaxError in future versions.*
- Add early return for non-loadable AOT compilation to prevent unnecessary assertions
- Redirect stderr to stdout in test_case for unified output
- Update `create_tmpfiles()`  to improve clarity and handling of temporary files

ci/coding_guidelines_check.py

@@ -145,7 +145,7 @@ def run_clang_format_diff(root: Path, commits: str) -> bool:
         found = False
         for summary in [x for x in diff_content if x.startswith("diff --git")]:
             # b/path/to/file -> path/to/file
-            with_invalid_format = re.split("\s+", summary)[-1][2:]
+            with_invalid_format = re.split(r"\s+", summary)[-1][2:]
             if not is_excluded(with_invalid_format):
                 print(f"--- {with_invalid_format} failed on code style checking.")
                 found = True