Bump version

Author: tusharsadhwani

setup.cfg

@@ -1,6 +1,6 @@
 [metadata]
 name = zxpy
-version = 1.5.2
+version = 1.6.0
 description = Shell scripts made simple
 long_description = file: README.md
 long_description_content_type = text/markdown
@@ -14,7 +14,6 @@ classifiers =
     Operating System :: OS Independent
     Programming Language :: Python :: 3
     Programming Language :: Python :: 3 :: Only
-    Programming Language :: Python :: 3.6
     Programming Language :: Python :: 3.7
     Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
@@ -24,7 +23,7 @@ classifiers =
 
 [options]
 py_modules = zx
-python_requires = >=3.6
+python_requires = >=3.7
 
 [options.entry_points]
 console_scripts =