Update {pkg,tests} -> sdk dependency (#8524)

pkg/go.mod

@@ -34,7 +34,7 @@ require (
 	github.com/nbutton23/zxcvbn-go v0.0.0-20180912185939-ae427f1e4c1d
 	github.com/opentracing/opentracing-go v1.1.0
 	github.com/pgavlin/goldmark v1.1.33-0.20200616210433-b5eb04559386
-	github.com/pulumi/pulumi/sdk/v3 v3.18.1
+	github.com/pulumi/pulumi/sdk/v3 v3.19.0
 	github.com/rjeczalik/notify v0.9.2
 	github.com/santhosh-tekuri/jsonschema/v5 v5.0.0
 	github.com/sergi/go-diff v1.1.0
@@ -55,7 +55,6 @@ require (
 	golang.org/x/net v0.0.0-20210505214959-0714010a04ed
 	golang.org/x/oauth2 v0.0.0-20210427180440-81ed05c6b58c
 	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c
-	golang.org/x/tools v0.1.0
 	google.golang.org/api v0.46.0
 	google.golang.org/genproto v0.0.0-20210506142907-4a47615972c2
 	google.golang.org/grpc v1.37.0
@@ -138,7 +137,6 @@ require (
 	github.com/sabhiram/go-gitignore v0.0.0-20180611051255-d3107576ba94 // indirect
 	github.com/shurcooL/sanitized_anchor_name v1.0.0 // indirect
 	github.com/sirupsen/logrus v1.4.2 // indirect
-	github.com/spf13/pflag v1.0.3 // indirect
 	github.com/src-d/gcfg v1.4.0 // indirect
 	github.com/texttheater/golang-levenshtein v0.0.0-20191208221605-eb6844b05fc6 // indirect
 	github.com/tklauser/numcpus v0.2.3 // indirect

tests/go.mod

@@ -12,8 +12,8 @@ require (
 	github.com/blang/semver v3.5.1+incompatible
 	github.com/golang/protobuf v1.5.2
 	github.com/mattn/go-runewidth v0.0.9 // indirect
-	github.com/pulumi/pulumi/pkg/v3 v3.3.0
-	github.com/pulumi/pulumi/sdk/v3 v3.18.1
+	github.com/pulumi/pulumi/pkg/v3 v3.18.1
+	github.com/pulumi/pulumi/sdk/v3 v3.19.0
 	github.com/stretchr/testify v1.7.0
 	google.golang.org/grpc v1.37.0
 	sourcegraph.com/sourcegraph/appdash v0.0.0-20190731080439-ebfcffb1b5c0