Refactor generating %check section

tests/test_configs/pyp2spec_click.conf

@@ -16,7 +16,7 @@ comes with good defaults out of the box.
 '''
 
 extra_build_requires = ["test"]
-test = "tox"
+test_method = "tox"
 
 license_files = ["LICENSE.rst"]
 doc_files = ["README.rst", "CHANGES.rst"]

tests/test_configs/pyp2spec_jupyter-packaging.conf

@@ -16,7 +16,7 @@ accompanying JavaScript packages.
 extra_build_requires = ["runtime", "extra"]
 extra_test_env = ["test"]
 
-test = "pytest"
+test_method = "pytest"
 unwanted_tests = [
     "test_build_package",
     "test_create_cmdclass",

tests/test_configs/pyp2spec_markdown-it-py.conf

@@ -23,7 +23,7 @@ manual_build_requires = [
     "python3-psutil"
 ]
 
-test = "pytest"
+test_method = "pytest"
 unwanted_tests = [
     "test_pretty",
     "test_table_tokens",

tests/test_configs/pyp2spec_tomli.conf

@@ -19,7 +19,7 @@ manual_build_requires = [
 ]
 
 extra_build_requires = ["runtime"]
-test = "pytest"
+test_method = "pytest"
 
 license_files = ["LICENSE"]
 doc_files = ["README.md", "CHANGELOG.md"]