Update .golangci.yaml to ignore G115 bound checks

- securego/gosec#1187

Author: tjmoore4

.golangci.yaml

@@ -57,6 +57,11 @@ linters-settings:
               k8s.io/kubernetes is for managing dependencies of the Kubernetes
               project, i.e. building kubelet and kubeadm.
 
+  gosec:
+    excludes:
+      # Flags for potentially-unsafe casting of ints, similar problem to globally-disabled G103
+      - G115
+
   importas:
     alias:
       - pkg: k8s.io/api/(\w+)/(v[\w\w]+)