build(deps): bump github.com/knadh/koanf from 1.4.4 to 1.4.5 (#2179)

Bumps [github.com/knadh/koanf](https://github.com/knadh/koanf) from 1.4.4 to 1.4.5.
- [Release notes](https://github.com/knadh/koanf/releases)
- [Commits](knadh/koanf@v1.4.4...v1.4.5)

---
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>

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

go.mod

@@ -31,7 +31,7 @@ require (
 	github.com/grpc-ecosystem/grpc-opentracing v0.0.0-20180507213350-8e809c8a8645
 	github.com/hashicorp/vault/sdk v0.6.2
 	github.com/jinzhu/copier v0.3.5
-	github.com/knadh/koanf v1.4.4
+	github.com/knadh/koanf v1.4.5
 	github.com/magiconair/properties v1.8.7
 	github.com/matttproud/golang_protobuf_extensions v1.0.4 // indirect
 	github.com/mitchellh/mapstructure v1.5.0

go.sum

@@ -502,8 +502,8 @@ github.com/kisielk/errcheck v1.1.0/go.mod h1:EZBBE59ingxPouuu3KfxchcWSUPOHkagtvW
 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 v1.4.4 h1:d2jY5nCCeoaiqvEKSBW9rEc93EfNy/XWgWsSB3j7JEA=
-github.com/knadh/koanf v1.4.4/go.mod h1:Hgyjp4y8v44hpZtPzs7JZfRAW5AhN7KfZcwv1RYggDs=
+github.com/knadh/koanf v1.4.5 h1:yKWFswTrqFc0u7jBAoERUz30+N1b1yPXU01gAPr8IrY=
+github.com/knadh/koanf v1.4.5/go.mod h1:Hgyjp4y8v44hpZtPzs7JZfRAW5AhN7KfZcwv1RYggDs=
 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=