fix: re-enable model version check in CI (#10796)

The check_model_version.js CI step was commented out, which allowed
v0.7.413 to ship with MODEL_VERSION=0.7.343 baked into the desktop
client. This causes a blocking "New version is available" dialog for
self-hosted users whose servers have MODEL_VERSION > 0.7.343.

Re-enabling this check will catch future model/version.txt drift
before it reaches a release.

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: shanzez

.github/workflows/main.yml

@@ -97,8 +97,8 @@ jobs:
             node common/scripts/install-run-rush.js install
           fi
 
-      # - name: Cheking model is updated...
-      #   run: node common/scripts/check_model_version.js
+      - name: Checking model version is updated...
+        run: node common/scripts/check_model_version.js
 
       - name: Checking for mis-matching dependencies...
         run: node common/scripts/install-run-rush.js check