deps: update dependency io.grpc:grpc-protobuf to v1.49.2 (#449)

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

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [io.grpc:grpc-protobuf](https://togithub.com/grpc/grpc-java) | `1.49.1` -> `1.49.2` | [![age](https://badges.renovateapi.com/packages/maven/io.grpc:grpc-protobuf/1.49.2/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/io.grpc:grpc-protobuf/1.49.2/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/io.grpc:grpc-protobuf/1.49.2/compatibility-slim/1.49.1)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/io.grpc:grpc-protobuf/1.49.2/confidence-slim/1.49.1)](https://docs.renovatebot.com/merge-confidence/) |

---

### Release Notes

<details>
<summary>grpc/grpc-java</summary>

### [`v1.49.2`](https://togithub.com/grpc/grpc-java/compare/v1.49.1...v1.49.2)

</details>

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - 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 [Mend Renovate](https://www.mend.io/free-developer-tools/renovate/). View repository job log [here](https://app.renovatebot.com/dashboard#github/googleapis/java-common-protos).
<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzMi4yMDguMiIsInVwZGF0ZWRJblZlciI6IjMyLjIwOC4yIn0=-->

java-common-protos/grpc-google-common-protos/build.gradle

@@ -19,7 +19,7 @@ repositories {
 
 dependencies {
   compile 'io.grpc:grpc-stub:1.49.2'
-  compile 'io.grpc:grpc-protobuf:1.49.1'
+  compile 'io.grpc:grpc-protobuf:1.49.2'
   compile project(':proto-google-common-protos')
 }