ci: use container for ubuntu images

Author: uyjulian

.github/workflows/ci.yml

@@ -23,6 +23,9 @@ jobs:
   build-ubuntu:
     runs-on: ubuntu-latest
     timeout-minutes: 20
+    container:
+      image: ubuntu:20.04
+      options: "--user 0"
     steps:
       - uses: actions/checkout@v3
         with:
@@ -77,6 +80,9 @@ jobs:
   build-win32:
     runs-on: ubuntu-latest
     timeout-minutes: 20
+    container:
+      image: ubuntu:20.04
+      options: "--user 0"
     steps:
       - uses: actions/checkout@v3
         with:
@@ -203,11 +209,19 @@ jobs:
     needs: [build-ubuntu, build-win32, build-macos, build-pfsfuse-win32]
     runs-on: ubuntu-latest
     timeout-minutes: 20
+    container:
+      image: ubuntu:20.04
+      options: "--user 0"
     if: startsWith(github.ref, 'refs/tags/v') || github.ref == 'refs/heads/master'
     steps:
       - name: Download all artifact
         uses: actions/download-artifact@v4
 
+      - name: Install build dependancies
+        run: |
+          sudo apt-get update
+          sudo apt-get install p7zip-full
+
       - name: Prepare artifacts for release
         run: |
           7z a -tzip pfsshell-ubuntu.zip pfsshell-ubuntu/*