build(deps): bump github.com/knadh/koanf from 1.4.1 to 1.4.2 (#1941)

Bumps [github.com/knadh/koanf](https://github.com/knadh/koanf) from 1.4.1 to 1.4.2.
- [Release notes](https://github.com/knadh/koanf/releases)
- [Commits](https://github.com/knadh/koanf/compare/v1.4.1...v1.4.2)

---
updated-dependencies:
- dependency-name: github.com/knadh/koanf
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
diff --git a/go.mod b/go.mod
index 3b21aa4..270cc72 100644
--- a/go.mod
+++ b/go.mod
@@ -31,7 +31,7 @@
 	github.com/grpc-ecosystem/grpc-opentracing v0.0.0-20180507213350-8e809c8a8645
 	github.com/hashicorp/vault/sdk v0.5.2
 	github.com/jinzhu/copier v0.3.5
-	github.com/knadh/koanf v1.4.1
+	github.com/knadh/koanf v1.4.2
 	github.com/magiconair/properties v1.8.6
 	github.com/mitchellh/mapstructure v1.5.0
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd
diff --git a/go.sum b/go.sum
index cbecb91..1146bd5 100644
--- a/go.sum
+++ b/go.sum
@@ -483,8 +483,8 @@
 github.com/kisielk/errcheck v1.2.0/go.mod h1:/BMXB+zMLi60iA8Vv6Ksmxu/1UDYcXs4uQLJ+jE2L00=
 github.com/kisielk/errcheck v1.5.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI2bnpBCr8=
 github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
-github.com/knadh/koanf v1.4.1 h1:Z0VGW/uo8NJmjd+L1Dc3S5frq6c62w5xQ9Yf4Mg3wFQ=
-github.com/knadh/koanf v1.4.1/go.mod h1:1cfH5223ZeZUOs8FU2UdTmaNfHpqgtjV0+NHjRO43gs=
+github.com/knadh/koanf v1.4.2 h1:2itp+cdC6miId4pO4Jw7c/3eiYD26Z/Sz3ATJMwHxIs=
+github.com/knadh/koanf v1.4.2/go.mod h1:4NCo0q4pmU398vF9vq2jStF9MWQZ8JEDcDMHlDCr4h0=
 github.com/koding/multiconfig v0.0.0-20171124222453-69c27309b2d7/go.mod h1:Y2SaZf2Rzd0pXkLVhLlCiAXFCLSXAIbTKDivVgff/AM=
 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=
@@ -1228,6 +1228,7 @@
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gotest.tools v2.2.0+incompatible/go.mod h1:DsYFclhRJ6vuDpmuTbkuFWG+y2sxOXAzmJt81HFBacw=