Drop support for Python 3.7 (#137)

Author: felix-seifert

.github/workflows/ci.yml

@@ -13,7 +13,6 @@ jobs:
     strategy:
       matrix:
         deps:
-          - { python: '3.7' }
           - { python: '3.8' }
           - { python: '3.9' }
           - { python: '3.10' }

setup.py

@@ -18,15 +18,14 @@
           'console_scripts': ['rplcd-tests=RPLCD_Tests.entrypoint:run'],
       },
       platforms=['any'],
-      python_requires='>=3.7',
+      python_requires='>=3.8',
       classifiers=[
           'Development Status :: 5 - Production/Stable',
           'Environment :: Other Environment',
           'Intended Audience :: Developers',
           'License :: OSI Approved :: MIT License',
           'Operating System :: POSIX',
           'Programming Language :: Python :: 3',
-          'Programming Language :: Python :: 3.7',
           'Programming Language :: Python :: 3.8',
           'Programming Language :: Python :: 3.9',
           'Programming Language :: Python :: 3.10',