Update requirements

requirements-dev.txt

@@ -1,7 +1,7 @@
 -r requirements-test.txt
 black==20.08b1
 packaging==20.9
-pre-commit==2.11.1
-PyGithub==1.54.1
-pyupgrade==2.10.0
-yamllint==1.26.0
+pre-commit~=2.11
+PyGithub~=1.54
+pyupgrade~=2.10
+yamllint~=1.26

requirements-test.txt

@@ -1,9 +1,9 @@
 -r requirements.txt
-pytest==6.2.2
-pytest-cov==2.10.1
-pytest-homeassistant-custom-component==0.2.1
-flake8==3.8.4
-pylint==2.7.2
-pylint-strict-informational==0.1
-asynctest==0.13.0
+asynctest~=0.13
+flake8~=3.9
 mypy==0.812
+pylint~=2.7
+pylint-strict-informational==0.1
+pytest~=6.2
+pytest-cov~=2.10
+pytest-homeassistant-custom-component~=0.2