Bump github.com/spf13/viper from 1.15.0 to 1.18.2

Bumps [github.com/spf13/viper](https://github.com/spf13/viper) from 1.15.0 to 1.18.2.
- [Release notes](https://github.com/spf13/viper/releases)
- [Commits](spf13/viper@v1.15.0...v1.18.2)

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

Signed-off-by: dependabot[bot] <[email protected]>

go.mod

@@ -4,40 +4,44 @@ go 1.18
 
 require (
 	github.com/derekparker/trie v0.0.0-20221221181808-1424fce0c981
-	github.com/golang/glog v1.1.0
+	github.com/golang/glog v1.1.2
 	github.com/golang/protobuf v1.5.3
 	github.com/google/go-cmp v0.6.0
 	github.com/kr/pretty v0.3.1
 	github.com/kylelemons/godebug v1.1.0
 	github.com/openconfig/gnmi v0.10.0
 	github.com/openconfig/goyang v1.4.4
 	github.com/openconfig/gribi v1.0.0
-	github.com/pmezard/go-difflib v1.0.0
+	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2
 	github.com/spf13/cobra v1.8.0
-	github.com/spf13/viper v1.15.0
-	golang.org/x/exp v0.0.0-20230801115018-d63ba01acd4b
-	google.golang.org/grpc v1.58.0-dev
+	github.com/spf13/viper v1.18.2
+	golang.org/x/exp v0.0.0-20230905200255-921286631fa9
+	google.golang.org/grpc v1.59.0
 	google.golang.org/protobuf v1.31.0
 )
 
 require (
-	github.com/fsnotify/fsnotify v1.6.0 // indirect
+	github.com/fsnotify/fsnotify v1.7.0 // indirect
 	github.com/hashicorp/hcl v1.0.0 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/kr/text v0.2.0 // indirect
 	github.com/magiconair/properties v1.8.7 // indirect
 	github.com/mitchellh/mapstructure v1.5.0 // indirect
-	github.com/pelletier/go-toml/v2 v2.0.8 // indirect
+	github.com/pelletier/go-toml/v2 v2.1.0 // indirect
 	github.com/rogpeppe/go-internal v1.9.0 // indirect
-	github.com/spf13/afero v1.9.5 // indirect
-	github.com/spf13/cast v1.5.1 // indirect
-	github.com/spf13/jwalterweatherman v1.1.0 // indirect
+	github.com/sagikazarmark/locafero v0.4.0 // indirect
+	github.com/sagikazarmark/slog-shim v0.1.0 // indirect
+	github.com/sourcegraph/conc v0.3.0 // indirect
+	github.com/spf13/afero v1.11.0 // indirect
+	github.com/spf13/cast v1.6.0 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
-	github.com/subosito/gotenv v1.4.2 // indirect
-	golang.org/x/net v0.17.0 // indirect
-	golang.org/x/sys v0.13.0 // indirect
-	golang.org/x/text v0.13.0 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20230525234030-28d5490b6b19 // indirect
+	github.com/subosito/gotenv v1.6.0 // indirect
+	go.uber.org/atomic v1.9.0 // indirect
+	go.uber.org/multierr v1.9.0 // indirect
+	golang.org/x/net v0.19.0 // indirect
+	golang.org/x/sys v0.15.0 // indirect
+	golang.org/x/text v0.14.0 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20231120223509-83a465c0220f // indirect
 	gopkg.in/ini.v1 v1.67.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )