fix(deps): update module github.com/spf13/viper to v1.18.1

Signed-off-by: cilium-renovate[bot] <134692979+cilium-renovate[bot]@users.noreply.github.com>

go.mod

@@ -34,7 +34,7 @@ require (
 	github.com/sirupsen/logrus v1.9.3
 	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/sryoya/protorand v0.0.0-20230821135621-5e0808bbd3d8
 	github.com/stretchr/testify v1.8.4
 	github.com/vishvananda/netlink v1.2.1-beta.2.0.20231127184239-0ced8385386a

go.sum

@@ -512,8 +512,8 @@ github.com/spf13/cobra v1.8.0 h1:7aJaZx1B85qltLMc546zn58BxxfZdR/W22ej9CFoEf0=
 github.com/spf13/cobra v1.8.0/go.mod h1:WXLWApfZ71AjXPya3WOlMsY9yMs7YeiHhFVlvLyhcho=
 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/sryoya/protorand v0.0.0-20230821135621-5e0808bbd3d8 h1:ycURGtB/l/SlFdlMCQCJbTdln5PgNn+wxba82/8N0pU=
 github.com/sryoya/protorand v0.0.0-20230821135621-5e0808bbd3d8/go.mod h1:9a23nlv6vzBeVlQq6JQCjljZ6sfzsB6aha1m5Ly1W2Y=
 github.com/stoewer/go-strcase v1.3.0 h1:g0eASXYtp+yvN9fK8sH94oCIk0fau9uV1/ZdJ0AVEzs=

vendor/modules.txt

@@ -701,7 +701,7 @@ github.com/spf13/cobra/doc
 # github.com/spf13/pflag v1.0.5
 ## explicit; go 1.12
 github.com/spf13/pflag
-# github.com/spf13/viper v1.18.0
+# github.com/spf13/viper v1.18.1
 ## explicit; go 1.18
 github.com/spf13/viper
 github.com/spf13/viper/internal/encoding