west.yml: fix build warnings in hal_st module

Fix hal_st module that broke CI.

Signed-off-by: Armando Visconti <armando.visconti@st.com>
diff --git a/west.yml b/west.yml
index f832817..2a80b99 100644
--- a/west.yml
+++ b/west.yml
@@ -245,7 +245,7 @@
       groups:
         - hal
     - name: hal_st
-      revision: 6d03b42859c2f8cedd6872da20b1dbdbef5c2392
+      revision: 6d963459acecfd2f9748ab506385a3188d8768f0
       path: modules/hal/st
       groups:
         - hal