Add python 3.9 testing

.github/workflows/install-tests.yml

@@ -10,7 +10,7 @@
     strategy:
       matrix:
         environment: ['macos-latest', 'windows-latest', 'ubuntu-latest']
-        python-version: [2.7, 3.5, 3.6, 3.7, 3.8]
+        python-version: [2.7, 3.5, 3.6, 3.7, 3.8, 3.9]
         python-architecture: ['x86', 'x64']
         mq-client-version: [9.1.5.0]
         exclude:

.github/workflows/unit-tests.yml

@@ -8,10 +8,9 @@
 jobs:
   pymqi_test_job:
     strategy:
-      max-parallel: 3
       matrix:
         environment: ['ubuntu-latest']
         # windows-latest: runner does allow to run ibmcom/mq linux container
         # macos-latest: runner does not have docker
         # macos-latest: has some issues in SeyfSV/setup-mqclient@master action
         #environment: ['ubuntu-latest', 'macos-latest', 'windows-latest']
@@ -12,10 +11,10 @@
       matrix:
         environment: ['ubuntu-latest']
         # windows-latest: runner does allow to run ibmcom/mq linux container
         # macos-latest: runner does not have docker
         # macos-latest: has some issues in SeyfSV/setup-mqclient@master action
         #environment: ['ubuntu-latest', 'macos-latest', 'windows-latest']
-        python-version: [2.7, 3.5, 3.6, 3.7, 3.8]
+        python-version: [2.7, 3.5, 3.6, 3.7, 3.8, 3.9]
         mq-client-version: [9.1.5.0]
 
     services: