Integration test against Pulp 3.21 and 3.16

Author: m-bull

.github/workflows/pull_request.yml

@@ -51,7 +51,7 @@ jobs:
       matrix:
         pulp:
           - "3.16"
-          - "3.18"
+          - "3.21"
     steps:
       # Checks-out the repository under $GITHUB_WORKSPACE, so it's accessible to the job
       - uses: actions/checkout@v2

tests/pulp-in-one.sh

@@ -8,7 +8,7 @@ set -o pipefail
 
 mkdir -p settings
 
-PULP_TAG=${PULP_TAG:3.18}
+PULP_TAG=${PULP_TAG:-"3.21"}
 
 cat << EOF > settings/settings.py
 CONTENT_ORIGIN='http://$(hostname):8080'