CI hardening: strict builds, conda dependabot, missing figure (succeeds #97)

.github/dependabot.yml

@@ -11,3 +11,16 @@ updates:
       prefix: ⬆️
     schedule:
       interval: weekly
+
+  - package-ecosystem: "conda"
+    directory: "/"
+    commit-message:
+      prefix: ⬆️
+    schedule:
+      interval: weekly
+    ignore:
+      - dependency-name: "jupyter-book"
+        versions: [">=2.0"]
+      - dependency-name: "python"
+        # Python version should be constrained by the anaconda distribution version
+        versions: [">0"]

.github/workflows/cache.yml

@@ -39,7 +39,7 @@ jobs:
       - name: Build HTML
         shell: bash -l {0}
         run: |
-          jb build lectures --path-output ./ --keep-going
+          jb build lectures --path-output ./ -n -W --keep-going
       - name: Upload Execution Reports (HTML)
         uses: actions/upload-artifact@v4
         if: failure()

.github/workflows/ci.yml

@@ -71,7 +71,7 @@ jobs:
       - name: Build HTML
         shell: bash -l {0}
         run: |
-          jb build lectures --path-output ./ --keep-going
+          jb build lectures --path-output ./ -n -W --keep-going
       - name: Upload Execution Reports (HTML)
         uses: actions/upload-artifact@v4
         if: failure()

.github/workflows/publish.yml

@@ -71,7 +71,7 @@ jobs:
       - name: Build HTML
         shell: bash -l {0}
         run: |
-          jb build lectures --path-output ./
+          jb build lectures --path-output ./ -n -W --keep-going
       # Create HTML archive for release assets
       - name: Create HTML archive
         shell: bash -l {0}