build: build docs for 1.11.0rc1

Author: foosel

.github/workflows/docs.yaml

@@ -16,6 +16,13 @@ jobs:
       matrix:
         # you must not use anything but include here or the version.json generation will fail!
         include:
+          - version: "1.11.0rc1"
+            source: "tags"
+            python: "3.10"
+            sphinx: "4.5.0"
+            mermaid: "0.7.1"
+            jinja: "3.1.1"
+            mermaid_fix: "true"
           - version: "1.10.3"
             source: "tags"
             python: "3.10"