[CI] update later hash step

.gitea/workflows/build.yml

@@ -27,7 +27,7 @@ jobs:
           ln -s /usr/src/zephyr-3.4.0/zephyr zephyr
           ln -s /usr/src/zephyr-3.4.0/bootloader bootloader
 
-      - name: Hash west module
+      - name: Hash west modules
         id: hash-west
         run: |
           FILE_PATH=zephyr/west.yml
@@ -87,9 +87,10 @@ jobs:
           path: firmware.zip
           name: firmware.zip
 
-      - name: Hash west module
+      - name: Hash west modules
         id: hash-west
         run: |
-          HASH=$(sha256sum zephyr/west.yml | head -c 64)
+          FILE_PATH=zephyr/west.yml
+          HASH=$(sha256sum <(find . -name build.yml -o -name west.yml -type f -exec sha256sum \; | sort) | head -c 64)
           echo "hash=$HASH" >> "$GITHUB_OUTPUT"
           echo "computed hash: $HASH"