docs: working examples: pyzmq no longer uses CircleCI (#2620)

pyzmq no longer uses CircleCI

zeromq/pyzmq@014bc3e

Author: mr-c

docs/data/projects.yml

@@ -172,13 +172,13 @@
 
 - name: pyzmq
   gh: zeromq/pyzmq
-  ci: [github, circleci]
+  ci: [github]
   os: [windows, apple, linux]
   ci_config: .github/workflows/wheels.yml
   notes: |
     Python bindings for zeromq, the networking library.
     Uses Cython on CPython and CFFI on PyPy.
-    ARM wheels for linux are built natively on CircleCI.
+    ARM wheels for linux are built natively on GitHub Actions.
 
 - name: python-rapidjson
   gh: python-rapidjson/python-rapidjson