Update CHANGELOG.md after new release

For eng/ide/als-publish#15

Author: AnthonyLeonardoGracio

CHANGELOG.md

@@ -2,9 +2,10 @@
 
 <!-- Do not change the title of this section. After a release create a new
 section below it for the last release. -->
-
 ## \<next>
 
+## 26.0.202507021
+
 * Added `onEnterRules` for Ada/GPR files to split long comments by adding automatically a comment tag to the next line
 * Added support for new LSP request `textDocument/inlineValue`
 * Resolved a bug where the Ada and GPR language servers made concurrent Alire