workflows: ci, tests: only run on 3.8 and 3.11 for PRs

This keeps CI jobs reasonable in PRs while testing the full set of
versions in the scheduled jobs and merges to dev and master.

.github/workflows/ci.yml

@@ -26,7 +26,7 @@ jobs:
       fail-fast: false
       matrix:
         os: ["ubuntu-latest", "windows-2022"]
-        python: ["3.8", "3.9", "3.10", "3.11"]
+        python: ${{ (github.event_name == 'pull_request' && fromJSON('["3.8", "3.11"]')) || fromJSON('["3.8", "3.9", "3.10", "3.11"]') }}
         type: ["cli",
                "dapp",
                "data_dependency",

.github/workflows/test.yml

@@ -25,7 +25,7 @@ jobs:
       matrix:
         os: ["ubuntu-latest", "windows-2022"]
         type: ["unit", "integration", "tool"]
-        python: ["3.8", "3.9", "3.10", "3.11"]
+        python: ${{ (github.event_name == 'pull_request' && fromJSON('["3.8", "3.11"]')) || fromJSON('["3.8", "3.9", "3.10", "3.11"]') }}
     steps:
       - uses: actions/checkout@v3
       - name: Set up Python ${{ matrix.python }}