ci: upgrade ci container to 26.04

Signed-off-by: Jason Truong <jason.truong@windriver.com>

Author: hungmtruong

.github/workflows/ci.yml

@@ -27,13 +27,14 @@ on:
   push:
     branches:
       - wr-integration
+      - ci-ubuntu-2604
   pull_request:
     branches:
       - wr-integration
 
 jobs:
   build:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu:26.04
     steps:
       - name: Checkout QEMU source
         uses: actions/checkout@v4