Use correct native importlib library available Python 3.7+

.gitlab-ci.yml

-stages: 
+stages:
+  - run
   - image
+
+test-run:
+  stage: run
+  image: python:3.11
+  before_script:
+    - pip3 install -r requirements.txt
+    - python3 setup.py install
+  script:
+    - hwtr -h
+
 docker-build:
   stage: image
   image: docker:latest

pypcc/pypcc.py

-import logging
+from importlib import metadata
 import argparse
+import logging
+import signal
+import sys
 import threading
 import time
-import sys
-import signal
-from importlib_metadata import metadata
 
 parser = argparse.ArgumentParser()
 parser.add_argument("-s", "--simulator", help="Do not connect to I2c, but simulate behaviour.", action="store_true")
@@ -26,7 +26,7 @@ args = parser.parse_args()
 #}
 #configure_logger(logstash_host=args.loghost,level=args.loglevel, log_extra=log_extra)
 logging.getLogger().setLevel(args.loglevel)
-git_hash=metadata("pypcc")["Summary"]
+git_hash=metadata.metadata("pypcc")["Summary"]
 logging.info("Git Hash="+git_hash)
 
 from pypcc.opcuaserv import opcuaserv

requirements.txt

-git+https://github.com/amaork/libi2c.git; platform_system == "linux"
+git+https://github.com/amaork/libi2c.git; platform_system == "Linux"
 asyncua
 numpy
 recordclass