Tidy up CI configuration

CI setup is a mess. The original intent was to run tests on different
distributions, to ensure that this library works properly on different
environments. This is a good idea for command line tools and other
utilities that are typically packaged by distributions.

django-afip, and several of its dependencies are not usually packaged by
distributions, so they are installed via pip. CI didn't really run tests
on various distributions with distribution-supplied dependencies: it was
an ugly mix, brittle and full of warts,

Converge all CI manifests to run tests inside docker, using the
docker-provided Python and dependencies from pip. I doubt anyone is
using django-afip with distribution-provided dependencies anyway, so
this setup is likely closer to the usual setup. It's definitely easier
to comprehend and maintain.

Author: WhyNotHugo

.builds/py311-debian.yml

@@ -0,0 +1,21 @@
+image: alpine/3.23
+packages:
+  - docker
+  - mariadb
+  - postgresql
+sources:
+  - https://github.com/WhyNotHugo/django-afip
+tasks:
+  - postgres: |
+      sudo service postgresql start
+  - mariadb: |
+      sudo sed -i 's/skip-networking/skip-grant-tables/' /etc/my.cnf.d/mariadb-server.cnf
+      sudo /etc/init.d/mariadb setup
+      sudo service mariadb start
+  - docker: |
+      sudo service docker start
+      sudo addgroup $(whoami) docker
+  - tox: |
+      cd django-afip
+      docker run --rm --network=host -v $(pwd):/src -w /src python:3.11-alpine \
+        .builds/test.sh

.builds/py311.yml

@@ -0,0 +1,21 @@
+image: alpine/3.23
+packages:
+  - docker
+  - mariadb
+  - postgresql
+sources:
+  - https://github.com/WhyNotHugo/django-afip
+tasks:
+  - postgres: |
+      sudo service postgresql start
+  - mariadb: |
+      sudo sed -i 's/skip-networking/skip-grant-tables/' /etc/my.cnf.d/mariadb-server.cnf
+      sudo /etc/init.d/mariadb setup
+      sudo service mariadb start
+  - docker: |
+      sudo service docker start
+      sudo addgroup $(whoami) docker
+  - tox: |
+      cd django-afip
+      docker run --rm --network=host -v $(pwd):/src -w /src python:3.12-alpine \
+        .builds/test.sh -e ALL,live

.builds/py312+live-alpine.yml

@@ -0,0 +1,21 @@
+image: alpine/3.23
+packages:
+  - docker
+  - mariadb
+  - postgresql
+sources:
+  - https://github.com/WhyNotHugo/django-afip
+tasks:
+  - postgres: |
+      sudo service postgresql start
+  - mariadb: |
+      sudo sed -i 's/skip-networking/skip-grant-tables/' /etc/my.cnf.d/mariadb-server.cnf
+      sudo /etc/init.d/mariadb setup
+      sudo service mariadb start
+  - docker: |
+      sudo service docker start
+      sudo addgroup $(whoami) docker
+  - tox: |
+      cd django-afip
+      docker run --rm --network=host -v $(pwd):/src -w /src python:3.13-alpine \
+        .builds/test.sh

.builds/py312.yml

@@ -1,13 +1,10 @@
 image: alpine/3.23
 packages:
-  - alpine-sdk
   - docker
   - mariadb
   - postgresql
 sources:
   - https://github.com/WhyNotHugo/django-afip
-environment:
-  CI: true
 tasks:
   - postgres: |
       sudo service postgresql start

.builds/py313-debian.yml

@@ -7,8 +7,8 @@ apk add git \
 	ghostscript \
 	libpq-dev \
 	mariadb-dev \
-	pango \
-	py3-tox \
-	python3-dev
+	pango
+pip install tox
 
-tox "$@"
+export CI=true
+tox --colored=yes "$@"