CI: Fix electron sandbox on Linux

As of Ubuntu 24.04, electron sandbox needs to be properly SUID to run;
previously we were able to limp along.

Signed-off-by: Mark Yen <mark.yen@suse.com>

.github/actions/yarn-install/action.yaml

@@ -41,3 +41,10 @@ runs:
 
   - run: yarn install --frozen-lockfile
     shell: bash
+
+  - name: Fix electron sandbox
+    if: runner.os == 'Linux'
+    shell: bash
+    run: |
+      sudo chown root node_modules/electron/dist/chrome-sandbox
+      sudo chmod 04755 node_modules/electron/dist/chrome-sandbox