deps: update dependency com.google.api.grpc:proto-google-iam-v1 to v1.2.2 (#705)

[![WhiteSource Renovate](https://app.renovatebot.com/images/banner.svg)](https://renovatebot.com)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.api.grpc:proto-google-iam-v1](https://togithub.com/googleapis/java-iam) | `1.2.1` -> `1.2.2` | [![age](https://badges.renovateapi.com/packages/maven/com.google.api.grpc:proto-google-iam-v1/1.2.2/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.api.grpc:proto-google-iam-v1/1.2.2/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.api.grpc:proto-google-iam-v1/1.2.2/compatibility-slim/1.2.1)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.api.grpc:proto-google-iam-v1/1.2.2/confidence-slim/1.2.1)](https://docs.renovatebot.com/merge-confidence/) |

---

### Release Notes

<details>
<summary>googleapis/java-iam</summary>

### [`v1.2.2`](https://togithub.com/googleapis/java-iam/blob/HEAD/CHANGELOG.md#&#8203;122-httpsgithubcomgoogleapisjava-iamcomparev121v122-2022-02-03)

[Compare Source](https://togithub.com/googleapis/java-iam/compare/v1.2.1...v1.2.2)

</details>

---

### Configuration

📅 **Schedule**: At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update again.

---

 - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, click this checkbox.

---

This PR has been generated by [WhiteSource Renovate](https://renovate.whitesourcesoftware.com). View repository job log [here](https://app.renovatebot.com/dashboard#github/googleapis/java-core).

Author: renovate-bot

java-core/pom.xml

@@ -154,7 +154,7 @@
     <gax.version>2.12.0</gax.version>
     <google.api-common.version>2.1.4</google.api-common.version>
     <google.common-protos.version>2.7.3</google.common-protos.version>
-    <google.iam.version>1.2.1</google.iam.version>
+    <google.iam.version>1.2.2</google.iam.version>
     <google.auth.version>1.4.0</google.auth.version>
     <google.api.version>1.33.2</google.api.version>
     <google.http.version>1.41.2</google.http.version>