Set SPHINXERRORHANDLING environment variable to 0 in build workflow

Author: m-aciek

.github/workflows/update-and-build.yml

@@ -102,6 +102,8 @@ jobs:
       - uses: sphinx-doc/github-problem-matcher@1f74d6599f4a5e89a20d3c99aab4e6a70f7bda0f  # v1.1
       - run: make -e SPHINXOPTS="--color -D language='pl' -W --keep-going" ${{ matrix.format }}
         working-directory: ./Doc
+        env:
+          SPHINXERRORHANDLING: 0
       - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7.0.1
         if: success() || failure()
         with: