fix gh pages workflow since gh-pages is not a valid branch

Looks like I can't trigger things committing things to that branch...?

.github/workflows/docs.yml

@@ -49,3 +49,8 @@ jobs:
         run: |
           cd docs
           mike deploy nightly --push
+
+  publish-gh-pages:
+    needs: [build-documentation]
+    uses: ./.github/workflows/publish_github_pages.yml
+    secrets: inherit

.github/workflows/post_release.yml

@@ -74,6 +74,11 @@ jobs:
           cd docs
           mike deploy --push --update-aliases ${RELEASE_VERSION} stable
 
+  publish-gh-pages:
+    needs: [docs]
+    uses: ./.github/workflows/publish_github_pages.yml
+    secrets: inherit
+
   chocolatey:
     needs: [initialize]
     runs-on: ubuntu-latest

.github/workflows/publish_github_pages.yml

@@ -8,9 +8,7 @@ name: Publish GitHub Pages
 
 on:
   workflow_dispatch:
-  push:
+  workflow_call:
-    branches:
-      - gh-pages
 
 jobs:
   build: