Pipeline: Increase timeout

Author: Maik Hummel

.github/workflows/docker.yml

@@ -8,12 +8,12 @@ on:
     tags: ["v*.*.*"]
 
 env:
-  platforms: linux/amd64,linux/arm64/v8,linux/arm/v7,linux/ppc64le
+  platforms: linux/amd64,linux/arm64/v8,linux/arm/v7,linux/s390x,linux/ppc64le
 
 jobs:
   main:
     runs-on: ubuntu-20.04
-    timeout-minutes: 5
+    timeout-minutes: 20
     steps:
       - name: Check out the repo
         uses: actions/checkout@v2