Use quantecon container for CI builds

.github/workflows/ci.yml

@@ -3,74 +3,48 @@ on: [pull_request]
 jobs:
   preview:
     runs-on: ubuntu-latest
+    container:
+      image: ghcr.io/quantecon/quantecon:latest
     steps:
       - name: Checkout
         uses: actions/checkout@v5
-      - name: Setup Anaconda
-        uses: conda-incubator/setup-miniconda@v3
-        with:
-          auto-update-conda: true
-          auto-activate-base: true
-          miniconda-version: 'latest'
-          python-version: "3.13"
-          environment-file: environment.yml
-          activate-environment: quantecon
-      - name: Graphics Support #TODO: Review if graphviz is needed
-        run: |
-          sudo apt-get -qq update && sudo apt-get install -y graphviz
-      - name: Install latex dependencies
-        run: |
-          sudo apt-get -qq update
-          sudo apt-get install -y     \
-            texlive-latex-recommended \
-            texlive-latex-extra       \
-            texlive-fonts-recommended \
-            texlive-fonts-extra       \
-            texlive-xetex             \
-            latexmk                   \
-            xindy                     \
-            dvipng                    \
-            cm-super
-      - name: Display Conda Environment Versions
-        shell: bash -l {0}
-        run: conda list
-      - name: Display Pip Versions
-        shell: bash -l {0}
-        run: pip list
+
       - name: Download "build" folder (cache)
         uses: dawidd6/action-download-artifact@v11
         with:
           workflow: cache.yml
           branch: main
           name: build-cache
           path: _build
+
       # Build Assets (Download Notebooks and PDF via LaTeX)
       - name: Build PDF from LaTeX
-        shell: bash -l {0}
         run: |
           jb build lectures --builder pdflatex --path-output ./ -n --keep-going
           mkdir -p _build/html/_pdf
           cp -u _build/latex/*.pdf _build/html/_pdf
+
       - name: Upload Execution Reports (LaTeX)
         uses: actions/upload-artifact@v5
         if: failure()
         with:
           name: execution-reports
           path: _build/latex/reports
+
       - name: Build Download Notebooks (sphinx-tojupyter)
-        shell: bash -l {0}
         run: |
           jb build lectures --path-output ./ --builder=custom --custom-builder=jupyter
           mkdir -p _build/html/_notebooks
           cp -u _build/jupyter/*.ipynb _build/html/_notebooks
+
       # Build HTML (Website)
       # BUG: rm .doctress to remove `sphinx` rendering issues for ipywidget mimetypes
       # and clear the sphinx cache for building final HTML documents.
       - name: Build HTML
-        shell: bash -l {0}
         run: |
           rm -r _build/.doctrees
           jb build lectures --path-output ./ -nW --keep-going
+
       - name: Upload Execution Reports (HTML)
         uses: actions/upload-artifact@v5
         if: failure()