release: cut the v21.2.4 release

Author: crisbeto

CHANGELOG.md

@@ -1,3 +1,12 @@
+<a name="21.2.4"></a>
+# 21.2.4 "hassium-halfpipe" (2026-03-25)
+### material
+| Commit | Type | Description |
+| -- | -- | -- |
+| [87aa6d977](https://github.com/angular/components/commit/87aa6d977166d09b0f321eed6300663bfe57b8aa) | fix | **tooltip:** wrong type for shape token ([#32968](https://github.com/angular/components/pull/32968)) |
+
+<!-- CHANGELOG SPLIT MARKER -->
+
 <a name="21.2.3"></a>
 # 21.2.3 "21-2-3" (2026-03-18)
 ### cdk

package.json

@@ -53,7 +53,7 @@
     "ci-docs-monitor-test": "node --no-warnings=ExperimentalWarning --loader ts-node/esm/transpile-only scripts/docs-deploy/monitoring/ci-test.mts",
     "prepare": "husky"
   },
-  "version": "21.2.3",
+  "version": "21.2.4",
   "dependencies": {
     "@angular-devkit/core": "catalog:",
     "@angular-devkit/schematics": "catalog:",