Merge pull request #10776 from ziggie1984/fix-release-notes-0.21.0-contributors-anchor

docs: fix Contributors TOC anchor in v0.21.0 release notes

Author: ziggie1984

docs/release-notes/release-notes-0.21.0.md

@@ -18,7 +18,7 @@
     - [Code Health](#code-health)
     - [Robustness](#robustness)
     - [Tooling and Documentation](#tooling-and-documentation)
-- [Contributors (Alphabetical Order)](#contributors)
+- [Contributors (Alphabetical Order)](#contributors-alphabetical-order)
 
 # Bug Fixes