Fix continuous-integration-documentation.yml file.

Author: KelSolaar

.github/workflows/continuous-integration-documentation.yml

@@ -16,7 +16,7 @@ jobs:
       - name: Environment Variables
         run: |
           echo "CI_PYTHON_VERSION=${{ matrix.python-version }}" >> $GITHUB_ENV
-          echo "CI_PACKAGE=colour" >> $GITHUB_ENV
+          echo "CI_PACKAGE=colour_clf_io" >> $GITHUB_ENV
           echo "CI_SHA=${{ github.sha }}" >> $GITHUB_ENV
           echo "MPLBACKEND=AGG" >> $GITHUB_ENV
           echo "COLOUR_SCIENCE__DOCUMENTATION_BUILD=True" >> $GITHUB_ENV