receptorctl: Remove setuptools runtime dep

Due to the pkg_resources import then setuptools is a runtime
dependency.
The pkg_resources module is deprecated and we should use importlib.metadata
instead which is a python builtin (since 3.8)

https://setuptools.pypa.io/en/latest/pkg_resources.html
https://docs.python.org/3.9/library/importlib.metadata.html

Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>

receptorctl/receptorctl/cli.py

@@ -9,7 +9,7 @@
 import json
 from functools import partial
 import dateutil.parser
-import pkg_resources
+import importlib.metadata
 from .socket_interface import ReceptorControl
 
 
@@ -87,7 +87,7 @@ def print_error(message, nl=True):
 def cli(ctx, socket, config, tlsclient, rootcas, key, cert, insecureskipverify):
     ctx.obj = {
         "rc": None,
-        "receptorctlVersion": pkg_resources.get_distribution("receptorctl").version,
+        "receptorctlVersion": importlib.metadata.version("receptorctl"),
         "receptorVersion": "Unknown",
     }
     # If we got a socket parameter we can make a ReceptorControl object