chore: update copyrights, protos, and config (#15)

* changes without context

        autosynth cannot find the source of changes triggered by earlier changes in this
        repository, or by version upgrades to tools such as linters.

* chore: generate GAPIC metadata JSON file

PiperOrigin-RevId: 345596855

Source-Author: Google APIs <noreply@google.com>
Source-Date: Thu Dec 3 21:00:34 2020 -0800
Source-Repo: googleapis/googleapis
Source-Sha: d189e871205fea665a9648f7c4676f027495ccaf
Source-Link: googleapis/googleapis@d189e87

* build: change package name to correct name

PiperOrigin-RevId: 355768415

Source-Author: Google APIs <noreply@google.com>
Source-Date: Thu Feb 4 20:11:51 2021 -0800
Source-Repo: googleapis/googleapis
Source-Sha: bc89fd90b0dc87b387d83a56b27789f807d9da11
Source-Link: googleapis/googleapis@bc89fd9

packages/google-cloud-managedidentities/.jsdoc.js

@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -40,10 +40,10 @@ module.exports = {
     includePattern: '\\.js$'
   },
   templates: {
-    copyright: 'Copyright 2020 Google LLC',
+    copyright: 'Copyright 2021 Google LLC',
     includeDate: false,
     sourceFiles: false,
-    systemName: 'managedidentities',
+    systemName: '@google-cloud/managed-identities',
     theme: 'lumen',
     default: {
       outputSourceFiles: false

packages/google-cloud-managedidentities/README.md

@@ -88,8 +88,7 @@ listDomains();
 
 ## Samples
 
-Samples are in the [`samples/`](https://github.com/googleapis/nodejs-managed-identities/tree/master/samples) directory. The samples' `README.md`
-has instructions for running the samples.
+Samples are in the [`samples/`](https://github.com/googleapis/nodejs-managed-identities/tree/master/samples) directory. Each sample's `README.md` has instructions for running its sample.
 
 | Sample                      | Source Code                       | Try it |
 | --------------------------- | --------------------------------- | ------ |

packages/google-cloud-managedidentities/linkinator.config.json

@@ -1 +1,10 @@
-{"recurse":true,"skip":["https://googleapis.dev/nodejs/managedidentities/latest/","https://github.com/googleapis/nodejs-managed-identities/blob/master/CHANGELOG.md","https://github.com/googleapis/nodejs-managed-identities/tree/master/samples","https://github.com/googleapis/nodejs-managed-identities/blob/master/samples/quickstart.js","http://localhost:5542/","https://codecov.io/gh/googleapis/","www.googleapis.com","img.shields.io"],"silent":true,"concurrency":10}
+{
+  "recurse": true,
+  "skip": [
+    "https://codecov.io/gh/googleapis/",
+    "www.googleapis.com",
+    "img.shields.io"
+  ],
+  "silent": true,
+  "concurrency": 10
+}