Finish migration to setuptools_scm

The initial migration never disabled the manual writing of version to
setup.py. setuptools_scm version 8 ceased support for overwriting the
version when it is already set. Disable manual writing and remove the
version restriction on setuptools_scm.

Fixes #190

common.mk

@@ -21,7 +21,6 @@ release:
 	@if ! type -P twine; then echo "Please install twine"; exit 1; fi
 	git pull
 	git clean -x --force $$(python setup.py --name)
-	sed -i -e "s/version=\([\'\"]\)[0-9]*\.[0-9]*\.[0-9]*/version=\1$${TAG:1}/" setup.py
 	git add setup.py
 	TAG_MSG=$$(mktemp); \
 	    echo "# Changes for ${TAG} ($$(date +%Y-%m-%d))" > $$TAG_MSG; \

pyproject.toml

@@ -21,3 +21,6 @@ ignore_missing_imports = true
 [[tool.mypy.overrides]]
 module = "yq.version"
 ignore_missing_imports = true
+
+[tool.setuptools_scm]
+version_file = "yq/version.py"

setup.py

@@ -4,18 +4,15 @@
 
 setup(
     name="yq",
-    version="3.4.2",
     url="https://github.com/kislyuk/yq",
     license="Apache Software License",
     author="Andrey Kislyuk",
     author_email="kislyuk@gmail.com",
     description="Command-line YAML/XML processor - jq wrapper for YAML/XML documents",
     long_description=open("README.rst").read(),
-    python_requires=">=3.6",
-    use_scm_version={
-        "write_to": "yq/version.py",
-    },
-    setup_requires=["setuptools_scm >= 7, <8"],
+    python_requires=">=3.8",
+    use_scm_version=True,
+    setup_requires=["setuptools_scm >= 7"],
     install_requires=[
         "PyYAML >= 5.3.1",
         "xmltodict >= 0.11.0",