Version Bump for 3.6.0

./scripts/bump_version.sh --version 3.6.0 --so-crypto 16 --so-x509 7  --so-tls 21

Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
diff --git a/ChangeLog b/ChangeLog
index 3237b76..9f6431d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,6 @@
 Mbed TLS ChangeLog (Sorted per branch, date)
 
-= Mbed TLS x.x.x branch released xxxx-xx-xx
+= Mbed TLS 3.6.0 branch released 2024-03-28
 
 API changes
    * Remove `tls13_` in mbedtls_ssl_tls13_conf_early_data() and