Norminette crashes against .c/.h files that aren't plain text

[grogu-42]

Describe the bug
Running norminette against a file with a .c/.h extension but isn't plain text, will make it crash with the following output:

Setting locale to en_US
Traceback (most recent call last):
  File "/tmp/env/bin/norminette", line 8, in <module>
    sys.exit(main())
             ^^^^^^
  File "/tmp/env/lib/python3.12/site-packages/norminette/__main__.py", line 136, in main
    tokens = list(lexer)
             ^^^^^^^^^^^
  File "/tmp/env/lib/python3.12/site-packages/norminette/lexer/lexer.py", line 536, in __iter__
    while token := self.get_next_token():
                   ^^^^^^^^^^^^^^^^^^^^^
  File "/tmp/env/lib/python3.12/site-packages/norminette/lexer/lexer.py", line 512, in get_next_token
    while self.raw_peek():
          ^^^^^^^^^^^^^^^
  File "/tmp/env/lib/python3.12/site-packages/norminette/lexer/lexer.py", line 104, in raw_peek
    if (pos := self.__pos + offset) < len(self.file.source):
                                          ^^^^^^^^^^^^^^^^
  File "/tmp/env/lib/python3.12/site-packages/norminette/file.py", line 20, in source
    self._source = file.read()
                   ^^^^^^^^^^^
  File "<frozen codecs>", line 322, in decode
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xd8 in position 96: invalid continuation byte

Additional infos
norminette 3.3.59, Python 3.12.3, Linux-5.15.167.4-microsoft-standard-WSL2-x86_64-with-glibc2.39
Also tested 3.3.55 and it has the same issue but without a stacktrace:

UnicodeDecodeError: 'utf-8' codec can't decode byte 0xd8 in position 96: invalid continuation byte

Reproduction steps

• Copy any executable and add the .c/.h extension at the end
• run norminette on it

Additional context
Is it possible to analyze the file before parsing and output a valid error message if it isn't a plain text file? Or is it intended behavior to let is crash?