fix

Signed-off-by: Dmitry Lopatin <dmitry.lopatin@flant.com>

Author: LopatinDmitr

images/virt-artifact/werf.inc.yaml

@@ -88,7 +88,7 @@ shell:
     go mod download
     go work vendor
 
-    for p in patches/*.patch ; do
+    for p in $(test -d patches && ls -1 patches/*.patch 2>/dev/null) ; do
       echo -n "Apply ${p} ... "
       git apply --ignore-space-change --ignore-whitespace ${p} && echo OK || (echo FAIL ; exit 1)
     done