Fix build.yml: inline config override to disable updater signing

Pass the JSON config directly to avoid shell variable expansion issues
with yarn. Disables updater plugin so TAURI_SIGNING_PRIVATE_KEY is
not required for CI builds.

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

Author: CodeGhost21

.github/workflows/build.yml

@@ -122,8 +122,6 @@ jobs:
 
       - name: Build Tauri app
         working-directory: app
-        run: |
-          TAURI_CONFIG_OVERRIDE='{"bundle":{"createUpdaterArtifacts":"never"},"plugins":{"updater":{"active":false}}}'
-          yarn tauri build -c "$TAURI_CONFIG_OVERRIDE" --bundles none -- -- --bin OpenHuman
+        run: yarn tauri build -c '{"bundle":{"createUpdaterArtifacts":"never"},"plugins":{"updater":{"active":false}}}' --bundles none -- -- --bin OpenHuman
         env:
           NODE_ENV: production