ci: source correct file

Author: gamemaker1

.github/workflows/mkdocs-build-and-push.yaml

@@ -1,5 +1,3 @@
-name: mkdocs build and push
-
 on:
   workflow_dispatch:
 
@@ -44,7 +42,7 @@ jobs:
       - name: build and push
         run: |
           cd sdk/
-          source .venv/bin/activate.sh
+          source .venv/bin/activate
           cd ../org/
           mkdocs gh-deploy --force \
             --message 'chore: deploy offline-function-calling/sdk@{sha}' \