Bump github.com/kisielk/errcheck from 1.4.0 to 1.6.0 (#119)

Bumps [github.com/kisielk/errcheck](https://github.com/kisielk/errcheck) from 1.4.0 to 1.6.0.
- [Release notes](https://github.com/kisielk/errcheck/releases)
- [Commits](kisielk/errcheck@v1.4.0...v1.6.0)

---
updated-dependencies:
- dependency-name: github.com/kisielk/errcheck
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

go.mod

@@ -8,7 +8,7 @@ require (
 	github.com/google/go-containerregistry v0.4.0
 	github.com/hashicorp/go-version v1.3.0
 	github.com/k14s/imgpkg v0.3.0
-	github.com/kisielk/errcheck v1.4.0
+	github.com/kisielk/errcheck v1.6.0
 	github.com/spf13/cobra v1.0.0
 	github.com/vmware-tanzu/carvel-vendir v0.17.0
 	golang.org/x/sync v0.0.0-20201207232520-09787c993a3a

go.sum

@@ -266,8 +266,8 @@ github.com/k14s/imgpkg v0.3.0 h1:WR0U9ZbTf2W68k0hoA6u28cDKvCiSE9UEKv7PxZy1zA=
 github.com/k14s/imgpkg v0.3.0/go.mod h1:UawhPTP5NySKEa+LW224ZlDccGb4qbSaiCyadSxgMSE=
 github.com/kisielk/errcheck v1.1.0/go.mod h1:EZBBE59ingxPouuu3KfxchcWSUPOHkagtvWXihfKN4Q=
 github.com/kisielk/errcheck v1.2.0/go.mod h1:/BMXB+zMLi60iA8Vv6Ksmxu/1UDYcXs4uQLJ+jE2L00=
-github.com/kisielk/errcheck v1.4.0 h1:ueN6QYA+c7eDQo7ebpNdYR8mUJZThiGz9PEoJEMGPzA=
-github.com/kisielk/errcheck v1.4.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI2bnpBCr8=
+github.com/kisielk/errcheck v1.6.0 h1:YTDO4pNy7AUN/021p+JGHycQyYNIyMoenM1YDVK6RlY=
+github.com/kisielk/errcheck v1.6.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI2bnpBCr8=
 github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
 github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
 github.com/konsorten/go-windows-terminal-sequences v1.0.3/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=