feat: Require python >=3.7

Signed-off-by: Ferenc Géczi <[email protected]>

Author: Ferenc-

setup.py

@@ -40,6 +40,7 @@
       long_description=long_description,
       long_description_content_type='text/markdown',
       zip_safe=False,
+      python_requires=">=3.7",
       install_requires=['autowrapt>=1.0',
                         'basictracer>=3.1.0',
                         'certifi>=2018.4.16',