Drop support for Python 3.8

numpy and other projects have already dropped support for it.

Author: mx-moth

.github/workflows/ci.yaml

@@ -38,7 +38,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11"]
+        python-version: ["3.9", "3.10", "3.11"]
 
     steps:
       - uses: actions/checkout@v3

setup.cfg

@@ -7,6 +7,7 @@ long_description_content_type = text/markdown
 author = "Coastal Environmental Modelling team, Oceans and Atmosphere, CSIRO"
 author_email = "[email protected]"
 license = "BSD-3-Clause"
+python_requires = ">=3.9"
 
 project_urls =
 	Documentation = https://emsarray.readthedocs.io/

tox.ini

@@ -1,7 +1,7 @@
 [tox]
 isolated_build = true
 envlist =
-	py{38,39,310,311}-pytest
+	py{39,310,311}-pytest
 	lint,docs
 skip_missing_interpreters = true
 requires =
@@ -25,7 +25,7 @@ conda_deps =
 # Install the python dependencies through pip
 deps = -rcontinuous-integration/requirements.txt
 
-[testenv:py{38,39,310,311}-pytest]
+[testenv:py{39,310,311}-pytest]
 commands =
 	pytest \
 		--junitxml=junit-{envname}.xml \