Excavator: Manage go module dependencies (#81)

Co-authored-by: svc-excavator-bot <svc-excavator-bot@palantir.com>

go.mod

@@ -4,25 +4,13 @@ go 1.14
 
 require (
 	github.com/Sirupsen/logrus v0.11.3-0.20170215164324-7f4b1adc7917
-	github.com/aws/aws-sdk-go v1.34.16
-	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/fsnotify/fsnotify v1.4.3-0.20170321125522-ff7bc41d4007 // indirect
+	github.com/aws/aws-sdk-go v1.35.11
 	github.com/go-playground/locales v0.11.2-0.20170327191450-1e5f1161c641 // indirect
 	github.com/go-playground/universal-translator v0.16.1-0.20170327191703-71201497bace // indirect
-	github.com/hashicorp/hcl v0.0.0-20170109002515-eb6f65b2d77e // indirect
-	github.com/inconshreveable/mousetrap v1.0.0 // indirect
-	github.com/magiconair/properties v1.7.3-0.20170321093039-51463bfca257 // indirect
-	github.com/mitchellh/mapstructure v0.0.0-20170125051937-db1efb556f84 // indirect
 	github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e // indirect
-	github.com/pelletier/go-buffruneio v0.2.0 // indirect
-	github.com/pelletier/go-toml v0.5.1-0.20170323102046-f6e7596e8daa // indirect
 	github.com/pkg/errors v0.9.1
-	github.com/spf13/afero v0.0.0-20170217164146-9be650865eab // indirect
-	github.com/spf13/cast v1.0.0 // indirect
-	github.com/spf13/cobra v0.0.0-20170314171253-7be4beda01ec
-	github.com/spf13/jwalterweatherman v0.0.0-20170109133355-fa7ca7e836cf // indirect
-	github.com/spf13/pflag v0.0.0-20170327141344-d16db1e50e33 // indirect
-	github.com/spf13/viper v0.0.0-20170315134309-84f94806c67f
+	github.com/spf13/cobra v1.1.1
+	github.com/spf13/viper v1.7.1
 	github.com/stretchr/testify v1.5.1
 	golang.org/x/net v0.0.0-20200520182314-0ba52f642ac2 // indirect
 	gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f // indirect