fix: update from go1.15 to go1.17 (#84)

Go 1.17 is EOL in 10 months time and is what is currently available from
EPEL for CentOS7

go.mod

@@ -1,6 +1,6 @@
 module github.com/radiorabe/virtual-saemubox
 
-go 1.15
+go 1.17
 
 require (
 	github.com/mitchellh/go-homedir v1.1.0
@@ -9,3 +9,24 @@ require (
 	github.com/spf13/viper v1.12.0
 	go.hein.dev/go-version v0.1.0
 )
+
+require (
+	github.com/fsnotify/fsnotify v1.5.4 // indirect
+	github.com/hashicorp/hcl v1.0.0 // indirect
+	github.com/inconshreveable/mousetrap v1.0.0 // indirect
+	github.com/magiconair/properties v1.8.6 // indirect
+	github.com/mitchellh/mapstructure v1.5.0 // indirect
+	github.com/pelletier/go-toml v1.9.5 // indirect
+	github.com/pelletier/go-toml/v2 v2.0.2 // indirect
+	github.com/spf13/afero v1.8.2 // indirect
+	github.com/spf13/cast v1.5.0 // indirect
+	github.com/spf13/jwalterweatherman v1.1.0 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
+	github.com/subosito/gotenv v1.4.0 // indirect
+	golang.org/x/sys v0.0.0-20220624220833-87e55d714810 // indirect
+	golang.org/x/text v0.3.7 // indirect
+	gopkg.in/ini.v1 v1.66.6 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+	sigs.k8s.io/yaml v1.3.0 // indirect
+)