Use setuptools-scm to derive version from git tags

Author: bw2

.github/workflows/test.yml

@@ -169,7 +169,7 @@ jobs:
 
         - name: Install build dependencies
           run: |
-            python -m pip install -U setuptools wheel
+            python -m pip install -U setuptools wheel setuptools-scm
 
         - name: Build
           run: |

setup.py

@@ -92,7 +92,8 @@ def launch_http_server(directory):
 
 setup(
     name="ConfigArgParse",
-    version="1.7.3",
+    use_scm_version={"version_scheme": "no-guess-dev"},
+    setup_requires=["setuptools_scm"],
     description="A drop-in replacement for argparse that allows options to "
     "also be set via config files and/or environment variables.",
     long_description=long_description,