Some hooks change EOL from CRLF to LF

Current Behavior

If a file was CRLF it will be changed to LF.

Expected Behavior

EOL should not be changed from the original file format

Context / environment

Steps to Reproduce (for bugs)

1. Have a repo with a file ending in CRLF
2. run e.g. pre-commit hook twincat-leading-tabs-remover on all files
3. Check file ending of the file which is now

Suggested Solution

Adapt the hooks to clean the output with something like

with open(filename, "r", encoding="utf-8", newline="") as f:
    original = f.read()

eol = "\r\n" if "\r\n" in original else "\n"
fixed = original.replace("\r\n", "\n")  # normalize internally
fixed = do_your_thing(fixed)
fixed = fixed.replace("\n", eol)        # restore

with open(filename, "w", encoding="utf-8", newline="") as f:
    f.write(fixed)

Start by reproducing the issue with a CRLF file and the twincat-leading-tabs-remover pre-commit hook. Inspect the affected hook implementations and verify that processing preserves the input file's original EOL style; done means CRLF files remain CRLF while the hook's cleanup still occurs.