fix(ci): 👷 changed grep for watchos build, considering only uuid lowercase + uppercase

Author: chicio

.github/workflows/build-watchos.yml

@@ -25,6 +25,11 @@ jobs:
               grep "Apple Watch" | \
               grep "watchOS Simulator" | \
               grep -m1 -oE '[a-fA-F0-9-]{36}')
+              
+            if [ -z "$WATCH_SIMULATOR_ID" ]; then
+              echo "No watchOS simulator found"
+              exit 1
+            fi
             
             echo "WATCH_SIMULATOR_ID=$WATCH_SIMULATOR_ID" >> $GITHUB_ENV
             echo "Using watchOS simulator: $WATCH_SIMULATOR_ID"