fix(deps): update dependency gcp-metadata to v1

fix(deps): update dependency gcp-metadata to v1

This PR contains the following updates:

| Package | Type | Update | Change | References |
|---|---|---|---|---|
| gcp-metadata | dependencies | major | `^0.9.0` -> `^1.0.0` | [source](https://togithub.com/googleapis/gcp-metadata) |

---

### Release Notes

<details>
<summary>googleapis/gcp-metadata</summary>

### [`v1.0.0`](https://togithub.com/googleapis/gcp-metadata/blob/master/CHANGELOG.md#v100)

[Compare Source](https://togithub.com/googleapis/gcp-metadata/compare/v0.9.3...v1.0.0)

02-14-2019 16:00 PST

##### Bug Fixes

-   fix: ask gaxios for text and not json ([#&#8203;152](https://togithub.com/googleapis/gcp-metadata/pull/152))

##### Documentation

-   docs: update links in contrib guide ([#&#8203;168](https://togithub.com/googleapis/gcp-metadata/pull/168))
-   docs: add lint/fix example to contributing guide ([#&#8203;160](https://togithub.com/googleapis/gcp-metadata/pull/160))

##### Internal / Testing Changes

-   build: use linkinator for docs test ([#&#8203;166](https://togithub.com/googleapis/gcp-metadata/pull/166))
-   chore(deps): update dependency [@&#8203;types/tmp](https://togithub.com/types/tmp) to v0.0.34 ([#&#8203;167](https://togithub.com/googleapis/gcp-metadata/pull/167))
-   build: create docs test npm scripts ([#&#8203;165](https://togithub.com/googleapis/gcp-metadata/pull/165))
-   test: run system tests on GCB ([#&#8203;157](https://togithub.com/googleapis/gcp-metadata/pull/157))
-   build: test using [@&#8203;grpc/grpc-js](https://togithub.com/grpc/grpc-js) in CI ([#&#8203;164](https://togithub.com/googleapis/gcp-metadata/pull/164))
-   chore: move CONTRIBUTING.md to root ([#&#8203;162](https://togithub.com/googleapis/gcp-metadata/pull/162))
-   chore(deps): update dependency gcx to v0.1.1 ([#&#8203;159](https://togithub.com/googleapis/gcp-metadata/pull/159))
-   chore(deps): update dependency gcx to v0.1.0 ([#&#8203;158](https://togithub.com/googleapis/gcp-metadata/pull/158))
-   chore(deps): update dependency gcx to v0.0.4 ([#&#8203;155](https://togithub.com/googleapis/gcp-metadata/pull/155))
-   chore(deps): update dependency googleapis to v37 ([#&#8203;156](https://togithub.com/googleapis/gcp-metadata/pull/156))
-   build: ignore googleapis.com in doc link check ([#&#8203;153](https://togithub.com/googleapis/gcp-metadata/pull/153))
-   build: check broken links in generated docs ([#&#8203;149](https://togithub.com/googleapis/gcp-metadata/pull/149))
-   chore(build): inject yoshi automation key ([#&#8203;148](https://togithub.com/googleapis/gcp-metadata/pull/148))

</details>

---

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#641 automerged by dpebot

Author: renovate[bot]

package.json

@@ -68,7 +68,7 @@
     "console-log-level": "^1.4.0",
     "extend": "^3.0.1",
     "findit2": "^2.2.3",
-    "gcp-metadata": "^0.9.0",
+    "gcp-metadata": "^1.0.0",
     "lodash.pickby": "^4.6.0",
     "p-limit": "^2.0.0",
     "pify": "^4.0.1",

test/nocks.ts

@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+import * as gcpMetadata from 'gcp-metadata';
 import * as nock from 'nock';
 
 // In the future _=>true.
@@ -48,14 +49,14 @@ export function register(validator?: Validator): nock.Scope {
 }
 
 export function projectId(reply: string): nock.Scope {
-  return nock('http://metadata.google.internal')
+  return nock(gcpMetadata.HOST_ADDRESS)
       .get('/computeMetadata/v1/project/project-id')
       .once()
       .reply(200, reply);
 }
 
 export function metadataInstance(): nock.Scope {
-  return nock('http://metadata.google.internal/')
+  return nock(gcpMetadata.HOST_ADDRESS)
       .get('/computeMetadata/v1/instance')
       .replyWithError({code: 'ENOTFOUND', message: 'nocked request'});
 }

test/test-debuglet.ts

@@ -16,6 +16,7 @@
 
 import * as assert from 'assert';
 import * as fs from 'fs';
+import * as gcpMetadata from 'gcp-metadata';
 import * as path from 'path';
 import * as proxyquire from 'proxyquire';
 
@@ -728,7 +729,7 @@ describe('Debuglet', () => {
         return Promise.resolve(true);
       };
       const clusterScope =
-          nock('http://metadata.google.internal')
+          nock(gcpMetadata.HOST_ADDRESS)
               .get('/computeMetadata/v1/instance/attributes/cluster-name')
               .once()
               .reply(200, 'cluster-name-from-metadata');