Merge pull request #1361 from pints-team/1359-testing-versions

Updated workflows to skip Ubuntu 16, and use Python 3.9 where possible.

.github/workflows/copyright-test.yml

@@ -22,10 +22,10 @@ jobs:
     steps:
       - uses: actions/checkout@v1
 
-      - name: Set up Python 3.8
+      - name: Set up Python 3.9
         uses: actions/setup-python@v1
         with:
-          python-version: 3.8
+          python-version: 3.9
           architecture: x64
 
       - name: install pints

.github/workflows/coverage-test.yml

@@ -22,10 +22,10 @@ jobs:
     steps:
       - uses: actions/checkout@v1
 
-      - name: Set up Python 3.8
+      - name: Set up Python 3.9
         uses: actions/setup-python@v1
         with:
-          python-version: 3.8
+          python-version: 3.9
           architecture: x64
 
       - name: install pints

.github/workflows/docs-test.yml

@@ -22,10 +22,10 @@ jobs:
     steps:
       - uses: actions/checkout@v1
 
-      - name: Set up Python 3.8
+      - name: Set up Python 3.9
         uses: actions/setup-python@v1
         with:
-          python-version: 3.8
+          python-version: 3.9
           architecture: x64
 
       - name: install pints

.github/workflows/style-test.yml

@@ -22,10 +22,10 @@ jobs:
     steps:
       - uses: actions/checkout@v1
 
-      - name: Set up Python 3.8
+      - name: Set up Python 3.9
         uses: actions/setup-python@v1
         with:
-          python-version: 3.8
+          python-version: 3.9
           architecture: x64
 
       - name: install pints

.github/workflows/unit-test-os-coverage.yml

@@ -21,15 +21,15 @@ jobs:
 
     strategy:
       matrix:
-        os: [ubuntu-16.04, macos-latest, windows-latest]
+        os: [ubuntu-18.04, macos-latest, windows-latest]
 
     steps:
       - uses: actions/checkout@v1
 
-      - name: Set up Python 3.8
+      - name: Set up Python 3.9
         uses: actions/setup-python@v1
         with:
-          python-version: 3.8
+          python-version: 3.9
           architecture: x64
 
       - name: install pints

.github/workflows/upload-to-pypi.yml

@@ -14,10 +14,10 @@ jobs:
     steps:
       - uses: actions/checkout@v1
 
-      - name: Set up Python 3.8
+      - name: Set up Python 3.9
         uses: actions/setup-python@v1
         with:
-          python-version: 3.8
+          python-version: 3.9
           architecture: x64
 
       - name: install dependencies