Use go 1.17 in CI tests and go.mod (hashicorp#303)

Updated the golang circleci image to 1.17, updated go.mod and ran
`go mod tidy`

.circleci/config.yml

@@ -2,8 +2,7 @@ version: 2
 jobs:
   build:
     docker:
-    - image: docker.mirror.hashicorp.services/circleci/golang:1.16
-    working_directory: /go/src/github.com/hashicorp/vault-k8s
+    - image: docker.mirror.hashicorp.services/cimg/go:1.17
     steps:
     - checkout
     - run:

go.mod

@@ -1,9 +1,8 @@
 module github.com/hashicorp/vault-k8s
 
-go 1.16
+go 1.17
 
 require (
-	github.com/armon/go-radix v1.0.0 // indirect
 	github.com/cenkalti/backoff/v4 v4.1.1
 	github.com/hashicorp/go-hclog v0.9.2
 	github.com/hashicorp/vault/sdk v0.1.14-0.20191205220236-47cffd09f972
@@ -13,11 +12,60 @@ require (
 	github.com/mitchellh/cli v1.0.0
 	github.com/operator-framework/operator-lib v0.6.0
 	github.com/pkg/errors v0.9.1
-	github.com/posener/complete v1.2.1 // indirect
 	github.com/prometheus/client_golang v1.11.0
 	github.com/radovskyb/watcher v1.0.7
 	github.com/stretchr/testify v1.7.0
 	k8s.io/api v0.21.3
 	k8s.io/apimachinery v0.21.3
 	k8s.io/client-go v0.21.3
 )
+
+require (
+	github.com/armon/go-radix v1.0.0 // indirect
+	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/bgentry/speakeasy v0.1.0 // indirect
+	github.com/cespare/xxhash/v2 v2.1.1 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/evanphx/json-patch v4.11.0+incompatible // indirect
+	github.com/fatih/color v1.12.0 // indirect
+	github.com/go-logr/logr v0.4.0 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/google/go-cmp v0.5.6 // indirect
+	github.com/google/gofuzz v1.1.0 // indirect
+	github.com/googleapis/gnostic v0.5.5 // indirect
+	github.com/hashicorp/errwrap v1.0.0 // indirect
+	github.com/hashicorp/go-multierror v1.0.0 // indirect
+	github.com/hashicorp/golang-lru v0.5.4 // indirect
+	github.com/imdario/mergo v0.3.12 // indirect
+	github.com/json-iterator/go v1.1.11 // indirect
+	github.com/mattn/go-colorable v0.1.8 // indirect
+	github.com/mattn/go-isatty v0.0.12 // indirect
+	github.com/matttproud/golang_protobuf_extensions v1.0.2-0.20181231171920-c182affec369 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.1 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/posener/complete v1.2.1 // indirect
+	github.com/prometheus/client_model v0.2.0 // indirect
+	github.com/prometheus/common v0.26.0 // indirect
+	github.com/prometheus/procfs v0.6.0 // indirect
+	github.com/ryanuber/go-glob v1.0.0 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
+	golang.org/x/net v0.0.0-20210428140749-89ef3d95e781 // indirect
+	golang.org/x/oauth2 v0.0.0-20200107190931-bf48bf16ab8d // indirect
+	golang.org/x/sys v0.0.0-20210603081109-ebe580a85c40 // indirect
+	golang.org/x/term v0.0.0-20210220032956-6a3ed077a48d // indirect
+	golang.org/x/text v0.3.6 // indirect
+	golang.org/x/time v0.0.0-20210220033141-f8bda1e9f3ba // indirect
+	google.golang.org/appengine v1.6.7 // indirect
+	google.golang.org/protobuf v1.26.0 // indirect
+	gopkg.in/inf.v0 v0.9.1 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+	gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b // indirect
+	k8s.io/klog/v2 v2.8.0 // indirect
+	k8s.io/kube-openapi v0.0.0-20210305001622-591a79e4bda7 // indirect
+	k8s.io/utils v0.0.0-20210527160623-6fdb442a123b // indirect
+	sigs.k8s.io/controller-runtime v0.9.0 // indirect
+	sigs.k8s.io/structured-merge-diff/v4 v4.1.2 // indirect
+	sigs.k8s.io/yaml v1.2.0 // indirect
+)