enforce py39 min

Author: ocefpaf

.github/workflows/deploy-docs.yml

@@ -34,7 +34,7 @@ jobs:
         environment-name: TEST
         init-shell: bash
         create-args: >-
-          python=3.12
+          python=3
           --file requirements.txt
           --file requirements-dev.txt
 

pyproject.toml

@@ -24,7 +24,7 @@ lint.select = [
     "I", # import sorting
     "U", # upgrade
 ]
-target-version = "py37"
+target-version = "py39"
 line-length = 120
 
 [lint.per-file-ignores]