feat: remove inherently incorrect "hook launcher"

hook_launcher.py

@@ -1,4 +0,0 @@
-#!/usr/bin/env python3
-from nyacme.hook import main
-
-main()

nyacme/__main__.py

@@ -3,6 +3,7 @@ import logging
 import os.path
 import shutil
 import subprocess
+import sys
 from datetime import datetime
 from pathlib import Path
 
@@ -51,8 +52,9 @@ def main() -> None:
 
         hook_path = shutil.which('nyacme-hook')
         if not hook_path:
-            log.warning('setting hook path to hook launcher from git repo')
-            hook_path = os.path.join(os.path.dirname(__file__), '..', 'hook_launcher.py')
+            log.warning('nyacme-hook not found')
+            log.warning('setting hook path to `python -m nyacme.hook` instead')
+            hook_path = f'{sys.executable} -m nyacme.hook'
 
         res = subprocess.run([
             'uacme', '-v',