Vague dependencies

Since I am not sure of the exact minimum versions required for either
attrs or click, leave them as "any" to prevent unnecessary peer
dependency resolution issues.

Author: joar

setup.py

@@ -53,7 +53,7 @@ def run(self):
 
 
 setup_requires = ["setuptools-rust>=0.10.1", "setuptools_scm>=3.1.0"]
-install_requires = ["attrs >= 18.2.0", "click >= 6.7"]
+install_requires = ["attrs", "click"]
 tests_require = install_requires + ["pytest", "pytest-benchmark"]
 
 LONG_DESCRIPTION = None