Updated Insiders changelog

CHANGELOG

+mkdocs-material-8.5.10+insiders-4.26.6 (2022-11-28)
+
+  * Fixed #4683: Tags plugin crashes when a tag is empty
+
 mkdocs-material-8.5.10+insiders-4.26.5 (2022-11-26)
 
   * Fixed #4632: Post excerpt title link doesn't point to top of the page

docs/insiders/changelog.md

@@ -2,6 +2,10 @@
 
 ## Material for MkDocs Insiders
 
+### 4.26.6 <small>_ November 28, 2022</small> { id="4.26.6" }
+
+- Fixed #4683: Tags plugin crashes when a tag is empty
+
 ### 4.26.5 <small>_ November 26, 2022</small> { id="4.26.5" }
 
 - Fixed #4632: Post excerpt title link doesn't point to top of the page