Workflow updates

- Do not re-run PR tests on edited PRs
- Close added/fixed issues on published release
- Issues stale after 60 days instead of 30, close after 10 days instead of 5
- Use Vankka/pr-target-branch-action for checking that PR is made to proper branch
- Add version number to sphinx config, must use cmake to configure the file
- Add jobs to readthedocs.yaml configuration

.github/workflows/issues-closer.yml

@@ -0,0 +1,21 @@
+name: Close Added/Fixed Issues
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  close_issues:
+    name: Check Issues / PRs
+    runs-on: ubuntu-latest
+    steps:
+      - name: Close Issues (added/fixed)
+        uses: actions/stale@v3
+        with:
+          only-issues-labels: 'added,fixed'
+          close-issue-message: >
+            This is now available in the latest release.
+          close-issue-label: 'released'
+          days-before-issue-stale: 0
+          days-before-issue-close: 0
+          ignore-updates: true