Bump github.com/spf13/viper from 1.18.0 to 1.18.1 (#554)

Bumps [github.com/spf13/viper](https://github.com/spf13/viper) from 1.18.0 to 1.18.1.
- [Release notes](https://github.com/spf13/viper/releases)
- [Commits](spf13/viper@v1.18.0...v1.18.1)

---
updated-dependencies:
- dependency-name: github.com/spf13/viper
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

go.mod

@@ -30,7 +30,7 @@ require (
 	github.com/sigstore/sigstore/pkg/signature/kms/hashivault v1.7.6
 	github.com/spf13/cobra v1.8.0
 	github.com/spf13/pflag v1.0.5
-	github.com/spf13/viper v1.18.0
+	github.com/spf13/viper v1.18.1
 	github.com/urfave/negroni v1.0.0
 	go.step.sm/crypto v0.39.0
 	go.uber.org/zap v1.26.0

go.sum

@@ -400,8 +400,8 @@ github.com/spf13/cobra v1.8.0/go.mod h1:WXLWApfZ71AjXPya3WOlMsY9yMs7YeiHhFVlvLyh
 github.com/spf13/pflag v1.0.3/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=
 github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
 github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
-github.com/spf13/viper v1.18.0 h1:pN6W1ub/G4OfnM+NR9p7xP9R6TltLUzp5JG9yZD3Qg0=
-github.com/spf13/viper v1.18.0/go.mod h1:EKmWIqdnk5lOcmR72yw6hS+8OPYcwD0jteitLMVB+yk=
+github.com/spf13/viper v1.18.1 h1:rmuU42rScKWlhhJDyXZRKJQHXFX02chSVW1IvkPGiVM=
+github.com/spf13/viper v1.18.1/go.mod h1:EKmWIqdnk5lOcmR72yw6hS+8OPYcwD0jteitLMVB+yk=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=