Changes pyproject.toml to match our actual allowed versions

Author: 56kyle

pyproject.toml

@@ -11,7 +11,6 @@ documentation = "https://pytest-static.readthedocs.io"
 classifiers = [
     "Development Status :: 1 - Planning",
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.7",
     "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",