west.yml: Update west to point to the recent changes for hal_stm32

Update west.yml to point to the recent changes for hal_stm32.

Signed-off-by: Ali Hozhabri <[email protected]>

Author: HoZHel

west.yml

@@ -250,7 +250,7 @@ manifest:
       groups:
         - hal
     - name: hal_stm32
-      revision: dc7c2543a079c57a4e7dbee54ed7877880dc235b
+      revision: pull/303/head
       path: modules/hal/stm32
       groups:
         - hal