MAINT: require a pytest version that already supported 3.8

Author: bsipocz

setup.cfg

@@ -32,7 +32,7 @@ python_requires = >=3.8
 setup_requires =
     setuptools_scm
 install_requires =
-    pytest>=4.6
+    pytest>=5.0
     numpy
 
 # tables limitation is until 3.9.3 is out as that supports ARM OSX.
@@ -47,7 +47,7 @@ pytest11 =
     pytest_arraydiff = pytest_arraydiff.plugin
 
 [tool:pytest]
-minversion = 4.6
+minversion = 5.0
 testpaths = tests
 xfail_strict = true
 markers =

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 envlist =
-    py{38,39,310,311,312}-test{,-pytestoldest,-pytest50,-pytest52,-pytest53,-pytest60,-pytest61,-pytest62,-pytest70,-pytest71,-pytest72,-pytest73,-pytest74,-devdeps}
+    py{38,39,310,311,312}-test{,-pytestoldest,-pytest52,-pytest53,-pytest60,-pytest61,-pytest62,-pytest70,-pytest71,-pytest72,-pytest73,-pytest74,-devdeps}
     codestyle
 requires =
     setuptools >= 30.3.0
@@ -13,8 +13,7 @@ setenv =
     devdeps: PIP_EXTRA_INDEX_URL = https://pypi.anaconda.org/astropy/simple https://pypi.anaconda.org/liberfa/simple https://pypi.anaconda.org/scientific-python-nightly-wheels/simple
 description = run tests
 deps =
-    pytestoldest: pytest==4.6.0
-    pytest50: pytest==5.0.*
+    pytestoldest: pytest==5.0.0
     pytest52: pytest==5.2.*
     pytest53: pytest==5.3.*
     pytest60: pytest==6.0.*