Add retry mechanism for AWS CLI command in upgrade run script (#1795)

Author: ptankov

e2e-tests/upgrade/run

@@ -219,7 +219,7 @@ function main() {
 	run_mongo 'use myApp\n db.test.drop()' "myApp:myPass@${cluster}-rs0.${namespace}"
 
 	backup_dest_minio=$(get_backup_dest "$backup_name_minio")
-	kubectl_bin run -i --rm aws-cli --image=perconalab/awscli --restart=Never -- \
+	retry 3 5 kubectl_bin run -i --rm aws-cli --image=perconalab/awscli --restart=Never -- \
 		/usr/bin/env AWS_ACCESS_KEY_ID=some-access-key AWS_SECRET_ACCESS_KEY=some-secret-key AWS_DEFAULT_REGION=us-east-1 \
 		/usr/bin/aws --endpoint-url http://minio-service:9000 s3 ls s3://${backup_dest_minio}/rs0/ \
 		| grep myApp.test.gz