Update Glibc.yml

.github/workflows/Glibc.yml

@@ -5,14 +5,13 @@ on:
 
 jobs:
   Building:
-      runs-on: centos7
     name: "Build Glibc on CentOS 7"
-
+    runs-on: ubuntu-latest
+    container: docker.io/centos:7
     steps:
-        - name: Checkout
+    - uses: actions/checkout@v2
-          uses: actions/checkout@v2
  
-        - name: Build
+    - name: intall deps
       run: |
         yum -y install gcc bison make centos-release-scl
         yum -y install devtoolset-8-gcc