requirements.txt: remove dependencies version

Author: replydev

requirements.txt

@@ -1,15 +1,15 @@
-astroid==2.4.2
-attrs==20.3.0
-iniconfig==1.1.1
-isort==5.7.0
-lazy-object-proxy==1.4.3
-mccabe==0.6.1
-packaging==20.8
-pluggy==0.13.1
-py==1.10.0
-pylint==2.6.0
-pyparsing==2.4.7
-pytest==6.2.1
-six==1.15.0
-toml==0.10.2
-wrapt==1.12.1
+astroid
+attrs
+iniconfig
+isort
+lazy-object-proxy
+mccabe
+packaging
+pluggy
+py
+pylint
+pyparsing
+pytest
+six
+toml
+wrapt