Update dependency mkdocs-material to v9.6.7

This MR contains the following updates:

Package	Update	Change
mkdocs-material (changelog)	patch	==9.6.5 -> ==9.6.7

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Release Notes

squidfunk/mkdocs-material (mkdocs-material)

v9.6.7: mkdocs-material-9.6.7

Compare Source

• Fixed #​8056: Error in backrefs implementation (9.6.6 regression)
• Fixed #​8054: Unescaped quotes in ARIA labels of table of contents

v9.6.6: mkdocs-material-9.6.6

Compare Source

• Fixed #​8040: Privacy plugin not replacing exteral assets (9.6.5 regression)
• Fixed #​8031: Replace unmaintained regex package in search plugin

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requirements.txt

 mkdocs==1.6.1
 pymdown-extensions>=10.0
 mkdocs-material-extensions==1.3.1
-mkdocs-material==9.6.5
+mkdocs-material==9.6.7
 mkdocs-glightbox>=0.3.4
 mkdocs-video==1.5.0
-mkdocs-material[imaging]==9.6.5
+mkdocs-material[imaging]==9.6.7
 mkdocs-rss-plugin==1.17.1
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