add lambda update script

Author: Anca

shipment-picture-lambda-validator/src/main/resources/lambda_update_script.sh

@@ -0,0 +1,6 @@
+
+#you need awslocal cli installed for this
+
+awslocal lambda update-function-code --function-name shipment-picture-lambda-validator \
+         --zip-file fileb://target/shipment-picture-lambda-validator-1.0-SNAPSHOT.jar \
+         --region eu-central-1