Use sphinx-doc/github-problem-matcher in CI (#1834)

Author: StanFromIreland

.github/workflows/ci.yml

@@ -22,6 +22,7 @@ jobs:
           python-version: "3"
       - name: Install uv
         uses: hynek/setup-cached-uv@4300ec2180bc77d705e626a34e381b81a4772c51 # v2.5.0
+      - uses: sphinx-doc/github-problem-matcher@d521df655a8af22fcc69e4f4af8b1f25699ee754 # v1.0
       - name: Build docs
         run: make html
       - name: Link check