Revert "action: move OS upgrade right before devstack install"

This reverts commit ee6313f.

Author: EmilienM

action.yaml

@@ -22,6 +22,9 @@ inputs:
 runs:
   using: "composite"
   steps:
+    - name: Run update and upgrade
+      run: sudo apt update && sudo apt -y upgrade
+      shell: bash
     - name: Install python pip
       run: python -m pip install --upgrade pip
       shell: bash
@@ -75,9 +78,6 @@ runs:
         fi
       working-directory: ./devstack
       shell: bash
-    - name: Upgrade the operating system
-      run: sudo apt-get update && sudo apt-get -y upgrade
-      shell: bash
     - name: Run devstack
       env:
         FORCE: ${{ inputs.force }}