gh-36160: Fix documentation previews using mathjax cdns

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Fixes #36159

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URL: #36160
Reported by: Kwankyu Lee
Reviewer(s):

Author: Release Manager

.github/workflows/doc-build.yml

@@ -82,6 +82,7 @@ jobs:
         # incremental docbuild may introduce broken links (inter-file references) though build succeeds
         run: |
           set -ex
+          export SAGE_USE_CDNS=yes
           mv /sage/local/share/doc/sage/html/en/.git /sage/.git-doc
           make doc-clean doc-uninstall sagelib-clean && git clean -fx src/sage
           mkdir -p /sage/local/share/doc/sage/html/en/ && mv /sage/.git-doc /sage/local/share/doc/sage/html/en/.git

build/pkgs/configure/checksums.ini

@@ -1,4 +1,4 @@
 tarball=configure-VERSION.tar.gz
-sha1=d0a3737795390fc46d2cec3bf0f8c6548da2e08f
-md5=10be304a3521209b8c8590824ef76587
-cksum=602858466
+sha1=f8caca3192ba227053c83210717bfe6529233a72
+md5=69dcea3f4a3e0bae62b731e4413afd73
+cksum=3763342103

build/pkgs/configure/package-version.txt

@@ -1 +1 @@
-b1ba78aff8355d0e4fc4cdea6ec08a521303e327
+468c15263b1829c1561cfad59fdbea723a17d6b4