add mkdocs-redirects to requirements.txt

Author: leggewie

requirements.txt

@@ -2,6 +2,7 @@ Jinja2~=3.1.4
 markdown>=3.6
 mkdocs>=1.6.0
 mkdocs-material>=9.5.31
+mkdocs-redirects>=1.2.2
 mkdocs-with-pdf>=0.9.3
 mdx_truly_sane_lists>=1.3.0
-weasyprint==44
+weasyprint==44