merge bitcoin#28347: replace deprecated pkg_resources with importlib.metadata

Author: kwvg

test/lint/lint-python.py

@@ -9,10 +9,12 @@
 """
 
 import os
-import pkg_resources
 import subprocess
 import sys
 
+from importlib.metadata import metadata, PackageNotFoundError
+
+
 DEPS = ['flake8', 'lief', 'mypy', 'pyzmq']
 MYPY_CACHE_DIR = f"{os.getenv('BASE_ROOT_DIR', '')}/test/.mypy_cache"
 FILES_ARGS = ['git', 'ls-files', '--','test/functional/*.py', 'contrib/devtools/*.py', ':(exclude)contrib/devtools/github-merge.py']
@@ -95,10 +97,10 @@
 
 
 def check_dependencies():
-    working_set = {pkg.key for pkg in pkg_resources.working_set}
-
     for dep in DEPS:
-        if dep not in working_set:
+        try:
+            metadata(dep)
+        except PackageNotFoundError:
             print(f"Skipping Python linting since {dep} is not installed.")
             exit(0)