fix(docs): Add readthedocs config to try fixing the build

Signed-off-by: Joas Schilling <coding@schilljs.com>

.readthedocs.yaml

@@ -0,0 +1,10 @@
+version: 2
+
+build:
+  os: ubuntu-22.04
+  tools:
+    python: "3"
+
+mkdocs:
+  configuration: mkdocs.yml
+  fail_on_warning: false

Makefile

@@ -93,6 +93,7 @@ appstore:
 	--exclude=.php_cs.dist \
 	--exclude=psalm.xml \
 	--exclude=README.md \
+	--exclude=.readthedocs.yaml \
 	--exclude=/recording \
 	--exclude=/site \
 	--exclude=/src \