chore(deps): bump pyparsing from 3.1.4 to 3.2.1 in /source

Bumps [pyparsing](https://github.com/pyparsing/pyparsing) from 3.1.4 to 3.2.1.
- [Release notes](https://github.com/pyparsing/pyparsing/releases)
- [Changelog](https://github.com/pyparsing/pyparsing/blob/master/CHANGES)
- [Commits](pyparsing/pyparsing@3.1.4...3.2.1)

---
updated-dependencies:
- dependency-name: pyparsing
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

source/requirements.txt

@@ -190,7 +190,7 @@ pygments==2.18.0
     #   accessible-pygments
     #   pydata-sphinx-theme
     #   sphinx
-pyparsing==3.1.4
+pyparsing==3.2.1
     # via
     #   -r source/requirements.txt
     #   matplotlib