Bump symplify/monorepo-builder from 11.2.23 to 12.3.2 in /tools/monorepo

Bumps [symplify/monorepo-builder](https://github.com/symplify/monorepo-builder) from 11.2.23 to 12.3.2.
- [Commits](symplify/monorepo-builder@11.2.23...12.3.2)

---
updated-dependencies:
- dependency-name: symplify/monorepo-builder
  dependency-version: 12.3.2
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

tools/monorepo/composer.json

@@ -3,7 +3,7 @@
   "description": "Aeon PHP Calendar - Tools",
   "require-dev": {
     "php": "~8.2.0 || ~8.3.0 || ~8.4.0",
-    "symplify/monorepo-builder": "11.2.23"
+    "symplify/monorepo-builder": "12.3.2"
   },
   "config": {
     "allow-plugins": false