Update dependency mkdocs-material to v9.7.7

Author: renovate[bot]

.github/workflows/mkdocs-requirements.txt

@@ -6,7 +6,7 @@ lunr==0.8.0
 MarkupSafe==3.0.3
 mkdocs==1.6.1
 mkdocs-macros-plugin==1.5.0
-mkdocs-material==9.7.6
+mkdocs-material==9.7.7
 mkdocs-material-extensions==1.3.1
 Pygments==2.20.0
 pymdown-extensions==11.0.1