build(deps): Bump github.com/spf13/viper from 1.20.1 to 1.21.0 (#2054)

Bumps [github.com/spf13/viper](https://github.com/spf13/viper) from 1.20.1 to 1.21.0.
- [Release notes](https://github.com/spf13/viper/releases)
- [Commits](https://github.com/spf13/viper/compare/v1.20.1...v1.21.0)

---
updated-dependencies:
- dependency-name: github.com/spf13/viper
  dependency-version: 1.21.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

go.mod

@@ -18,7 +18,7 @@ require (
 	github.com/pkg/errors v0.9.1
 	github.com/pquerna/otp v1.5.0
 	github.com/shopspring/decimal v1.4.0
-	github.com/spf13/viper v1.20.1
+	github.com/spf13/viper v1.21.0
 	github.com/stretchr/testify v1.11.1
 	github.com/thrasher-corp/gct-ta v0.0.0-20200623072738-f2b55b7f9f41
 	github.com/thrasher-corp/goose v2.7.0-rc4.0.20191002032028-0f2c2a27abdb+incompatible
@@ -45,28 +45,27 @@ require (
 	github.com/cpuguy83/go-md2man/v2 v2.0.7 // indirect
 	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
 	github.com/friendsofgo/errors v0.9.2 // indirect
-	github.com/fsnotify/fsnotify v1.8.0 // indirect
-	github.com/go-viper/mapstructure/v2 v2.2.1 // indirect
+	github.com/fsnotify/fsnotify v1.9.0 // indirect
+	github.com/go-viper/mapstructure/v2 v2.4.0 // indirect
 	github.com/google/uuid v1.6.0 // indirect
 	github.com/huandu/xstrings v1.5.0 // indirect
 	github.com/klauspost/cpuid/v2 v2.2.9 // indirect
 	github.com/mitchellh/copystructure v1.2.0 // indirect
 	github.com/mitchellh/reflectwalk v1.0.2 // indirect
-	github.com/pelletier/go-toml/v2 v2.2.3 // indirect
+	github.com/pelletier/go-toml/v2 v2.2.4 // indirect
 	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
-	github.com/sagikazarmark/locafero v0.7.0 // indirect
-	github.com/sourcegraph/conc v0.3.0 // indirect
-	github.com/spf13/afero v1.12.0 // indirect
-	github.com/spf13/cast v1.7.1 // indirect
-	github.com/spf13/pflag v1.0.6 // indirect
+	github.com/sagikazarmark/locafero v0.11.0 // indirect
+	github.com/sourcegraph/conc v0.3.1-0.20240121214520-5f936abd7ae8 // indirect
+	github.com/spf13/afero v1.15.0 // indirect
+	github.com/spf13/cast v1.10.0 // indirect
+	github.com/spf13/pflag v1.0.10 // indirect
 	github.com/subosito/gotenv v1.6.0 // indirect
 	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
 	github.com/volatiletech/inflect v0.0.1 // indirect
 	github.com/volatiletech/sqlboiler v3.7.1+incompatible // indirect
 	github.com/xrash/smetrics v0.0.0-20240521201337-686a1a2994c1 // indirect
-	go.uber.org/atomic v1.9.0 // indirect
-	go.uber.org/multierr v1.9.0 // indirect
+	go.yaml.in/yaml/v3 v3.0.4 // indirect
 	golang.org/x/arch v0.13.0 // indirect
 	golang.org/x/net v0.42.0 // indirect
 	golang.org/x/sys v0.36.0 // indirect