go get cloud.google.com/go@v0.45.1

The primary motivation of this is that this old version of
cloud.google.com/go depends on an old version of go.opencensus.io which
in turn depends on git.apache.org/thrift.git, which is an old mirror of
the Thrift repository that is no longer canonical and is currently down.

We don't need thrift in our dependency graph at all here, and we only
had it in the first place because go.opencensus.io was depending on it.
Newer versions of that library don't include a thrift client in the main
library and so we don't inherit that transitive dependency anymore.

This also cleans up some accumulated checksums that we no longer need from
the go.sum file.

go.mod

@@ -1,10 +1,11 @@
 module github.com/hashicorp/go-getter
 
 require (
-	cloud.google.com/go v0.36.0
+	cloud.google.com/go v0.45.1
 	github.com/aws/aws-sdk-go v1.15.78
 	github.com/bgentry/go-netrc v0.0.0-20140422174119-9fd32a8b3d3d
 	github.com/cheggaaa/pb v1.0.27
+	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/fatih/color v1.7.0 // indirect
 	github.com/hashicorp/go-cleanhttp v0.5.0
 	github.com/hashicorp/go-safetemp v1.0.0
@@ -14,9 +15,9 @@ require (
 	github.com/mattn/go-runewidth v0.0.4 // indirect
 	github.com/mitchellh/go-homedir v1.0.0
 	github.com/mitchellh/go-testing-interface v1.0.0
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/stretchr/testify v1.2.2 // indirect
 	github.com/ulikunitz/xz v0.5.5
-	golang.org/x/net v0.0.0-20181114220301-adae6a3d119a // indirect
-	golang.org/x/sys v0.0.0-20181213200352-4d1cda033e06 // indirect
-	google.golang.org/api v0.1.0
+	google.golang.org/api v0.9.0
 	gopkg.in/cheggaaa/pb.v1 v1.0.27 // indirect
 )