[VOL-5486] Upgrade library versions

Change-Id: I8b4e88699e03f44ee13e467867f45ae3f0a63c4b
Signed-off-by: Abhay Kumar <abhay.kumar@radisys.com>
diff --git a/vendor/sigs.k8s.io/yaml/.travis.yml b/vendor/sigs.k8s.io/yaml/.travis.yml
index d20e23e..54ed8f9 100644
--- a/vendor/sigs.k8s.io/yaml/.travis.yml
+++ b/vendor/sigs.k8s.io/yaml/.travis.yml
@@ -1,8 +1,7 @@
 language: go
-dist: xenial
-go:
-  - 1.12.x
-  - 1.13.x
+arch: arm64
+dist: focal
+go: 1.15.x
 script:
   - diff -u <(echo -n) <(gofmt -d *.go)
   - diff -u <(echo -n) <(golint $(go list -e ./...) | grep -v YAMLToJSON)