Build against Ubuntu 20.04

Author: adriansmares

.github/workflows/build-on-release.yml

@@ -14,14 +14,14 @@ jobs:
       fail-fast: false
       matrix:
         os:
-          - ubuntu-22.04
+          - ubuntu-20.04
           - windows-latest
         include:
           - meta_branch: "1.11-dev"
             sm_branch: "1.11-dev"
             spcomp_version: "1.11.x"
 
-          - os: ubuntu-22.04
+          - os: ubuntu-20.04
             os_short: linux
             package_ext: tar.gz
 

.github/workflows/pull-request-ci-test.yml

@@ -12,20 +12,22 @@ jobs:
       fail-fast: false
       matrix:
         os:
+          - ubuntu-20.04
           - ubuntu-22.04
           - windows-latest
         include:
           - meta_branch: "1.11-dev"
             sm_branch: "1.11-dev"
             spcomp_version: "1.11.x"
 
-          - os: ubuntu-22.04
+          - os: ubuntu-20.04
             os_short: linux
-            package_ext: tar.gz
+
+          - os: ubuntu-22.04
+            os_short: newlinux
 
           - os: windows-latest
             os_short: win
-            package_ext: zip
 
     steps:
       - name: Prepare env