fix: pkg_resources has been deprecated and changed importlib

Author: soshiharami

Diff for: pymilvus/client/__init__.py

@@ -3,16 +3,18 @@
 import subprocess
 from contextlib import suppress
 
-from pkg_resources import DistributionNotFound, get_distribution
+try:
+    from importlib.metadata import version, PackageNotFoundError
+except ImportError:
+    # For Python versions < 3.8
+    from importlib_metadata import version, PackageNotFoundError
 
 log = logging.getLogger(__name__)
 
-
 __version__ = "0.0.0.dev"
 
-
-with suppress(DistributionNotFound):
-    __version__ = get_distribution("pymilvus").version
+with suppress(PackageNotFoundError):
+    __version__ = version("pymilvus")
 
 
 def get_commit(version: str = "", short: bool = True) -> str: