Update package-deb.yml

Author: timschneeb

.github/workflows/package-deb.yml

@@ -45,15 +45,14 @@ jobs:
 
   build-pipewire-amd64:
     runs-on: ubuntu-20.04
-    container: ubuntu:20.04
+    container: ubuntu:21.04
 
     steps:
     - name: Setup APT
       run:  echo 'APT::Acquire::Retries "4";' > /etc/apt/apt.conf.d/80-retries
 
     - name: Run APT updates
       run: |
-        add-apt-repository ppa:pipewire-debian/pipewire-upstream
         apt update
         apt upgrade -y git