feat: update mbedtls to version 3.6.2

Signed-off-by: Ryan Everett <ryan.everett@arm.com>
Change-Id: Ifadd318a0862c0af47bc606e6ea99cbec100b924
diff --git a/tf-a-windows-builder.yaml b/tf-a-windows-builder.yaml
index 100bc1d..a873713 100644
--- a/tf-a-windows-builder.yaml
+++ b/tf-a-windows-builder.yaml
@@ -44,7 +44,7 @@
           default: +refs/heads/master:refs/remotes/origin/master
       - string:
           name: MBEDTLS_URL
-          default: https://github.com/Mbed-TLS/mbedtls/archive/mbedtls-3.6.1.tar.gz
+          default: https://github.com/Mbed-TLS/mbedtls/archive/mbedtls-3.6.2.tar.gz
       - string:
           name: PARAMS
           description: Debug parameters for make