update project files (#5457)

* update pre-commit hook
* upgrade pip with venv
* update description and version
* show url in publish environment
* update versions
* update versions, separate typing job
* use dependabot grouped updates
  ignore upload/download-artifact until slsa updates
* use sphinx.ext.extlinks instead of sphinx-issues
* update dev dependencies
* update editorconfig
* update gitignore
* update .readthedocs.yaml
* license is txt, readme is md
* update pyproject.toml
  add typed classifier
  add pyright config
  simplify urls
* tox builds docs in place
* update min test py version
* add tox env to update all dev dependencies
* update issue and pr templates
* rename security docs page to not conflict with org policy file
* simplify matrix

.github/workflows/lock.yaml

@@ -1,8 +1,9 @@
-name: 'Lock threads'
-# Lock closed issues that have not received any further activity for
-# two weeks. This does not close open issues, only humans may do that.
-# We find that it is easier to respond to new issues with fresh examples
-# rather than continuing discussions on old issues.
+name: Lock inactive closed issues
+# Lock closed issues that have not received any further activity for two weeks.
+# This does not close open issues, only humans may do that. It is easier to
+# respond to new issues with fresh examples rather than continuing discussions
+# on old issues.
+
 on:
   schedule:
     - cron: '0 0 * * *'
@@ -15,7 +16,8 @@ jobs:
   lock:
     runs-on: ubuntu-latest
     steps:
-      - uses: dessant/lock-threads@7de207be1d3ce97a9abe6ff1306222982d1ca9f9
+      - uses: dessant/lock-threads@7de207be1d3ce97a9abe6ff1306222982d1ca9f9 # v5.0.1
         with:
           issue-inactive-days: 14
           pr-inactive-days: 14
+          discussion-inactive-days: 14