Update Go dependencies and remove replace statements (#723)

* Update Go dependencies and remove replace statements

Signed-off-by: Jauder Ho <[email protected]>

* Set Go to 1.21 instead

Signed-off-by: Jauder Ho <[email protected]>

---------

Signed-off-by: Jauder Ho <[email protected]>

Author: jauderho

go.mod

@@ -1,26 +1,19 @@
 module github.com/digitalocean/godo
 
-go 1.20
+go 1.21
 
 require (
 	github.com/google/go-querystring v1.1.0
 	github.com/hashicorp/go-retryablehttp v0.7.7
 	github.com/stretchr/testify v1.8.4
-	golang.org/x/oauth2 v0.0.0-20220411215720-9780585627b5
-	golang.org/x/time v0.0.0-20220922220347-f3bd1da661af
+	golang.org/x/oauth2 v0.23.0
+	golang.org/x/time v0.6.0
 )
 
 require (
 	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/golang/protobuf v1.5.2 // indirect
 	github.com/hashicorp/go-cleanhttp v0.5.2 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
-	golang.org/x/net v0.23.0 // indirect
-	google.golang.org/appengine v1.6.7 // indirect
-	google.golang.org/protobuf v1.33.0 // indirect
+	golang.org/x/sys v0.25.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
-
-replace github.com/stretchr/objx => github.com/stretchr/objx v0.2.0
-
-replace golang.org/x/crypto => golang.org/x/crypto v0.0.0-20200420201142-3c4aac89819a