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

tests/wamr-test-suites/spec-test-script/all.py

@@ -247,7 +247,7 @@ def test_case(
         CMD,
         bufsize=1,
         stdout=subprocess.PIPE,
-        stderr=subprocess.PIPE,
+        stderr=subprocess.STDOUT,
         universal_newlines=True,
     ) as p:
         try:
@@ -285,7 +285,9 @@ def test_case(
         except subprocess.TimeoutExpired:
             print("failed with TimeoutExpired")
             raise Exception(case_name)
-
+        except Exception as e:
+            print(f"An unexpected error occurred: {e}")
+            raise e
 
 def test_suite(
     target,