Drop Ubuntu 20.10

Author: mpe

.github/workflows/deploy.yml

@@ -12,7 +12,7 @@ jobs:
     strategy:
       matrix:
         subarch: [ppc64le]
-        image: [ ubuntu@21.10, ubuntu@21.04, ubuntu@20.10, ubuntu@20.04, ubuntu@18.04, ubuntu@16.04, fedora@35, fedora@34, fedora@33, korg@11.1.0, korg@10.3.0, korg@9.3.0, korg@5.5.0 ]
+        image: [ ubuntu@21.10, ubuntu@21.04, ubuntu@20.04, ubuntu@18.04, ubuntu@16.04, fedora@35, fedora@34, fedora@33, korg@11.1.0, korg@10.3.0, korg@9.3.0, korg@5.5.0 ]
 
     env:
       SUBARCH: ${{ matrix.subarch }}

.travis.yml

@@ -23,10 +23,6 @@ jobs:
       arch: ppc64le
       env:  SUBARCH=ppc64le IMAGE=ubuntu@21.04
       name: ppc64le@ubuntu@21.04
-    - os:   linux
-      arch: ppc64le
-      env:  SUBARCH=ppc64le IMAGE=ubuntu@20.10
-      name: ppc64le@ubuntu@20.10
     - os:   linux
       arch: ppc64le
       env:  SUBARCH=ppc64le IMAGE=ubuntu@20.04