Fix md tests

Author: futa-ikeda

requirements.txt

@@ -52,7 +52,7 @@ h5py==3.13
 scipy==1.15.2
 
 # Md
-markdown==3.8.0
+markdown==3.3.7
 
 certifi==2025.1.31
 

tests/extensions/md/test_renderer.py

@@ -59,7 +59,7 @@ def test_render_md(self, test_md_file_path, assets_url, export_url):
 by a blank line.</p>
 <p>Leave 2 spaces at the end of a line to do a<br />
 line break</p>
-<p>Text attributes <em>italic</em>, <strong>bold</strong>,
+<p>Text attributes <em>italic</em>, <strong>bold</strong>, 
 <code>monospace</code>.</p>
 <p>A <a href="http://example.com">link</a>.
 [28]</p>