deps: update dependency com.google.protobuf:protobuf-bom to v3.19.4 (#699)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.protobuf:protobuf-bom](https://developers.google.com/protocol-buffers/) ([source](https://togithub.com/protocolbuffers/protobuf)) | `3.19.3` -> `3.19.4` | [![age](https://badges.renovateapi.com/packages/maven/com.google.protobuf:protobuf-bom/3.19.4/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.protobuf:protobuf-bom/3.19.4/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.protobuf:protobuf-bom/3.19.4/compatibility-slim/3.19.3)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.protobuf:protobuf-bom/3.19.4/confidence-slim/3.19.3)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

<details>
<summary>protocolbuffers/protobuf</summary>

### [`v3.19.4`](https://togithub.com/protocolbuffers/protobuf/releases/v3.19.4)

[Compare Source](https://togithub.com/protocolbuffers/protobuf/compare/v3.19.3...v3.19.4)

### Python

-   Make libprotobuf symbols local on OSX to fix issue [#&#8203;9395](https://togithub.com/protocolbuffers/protobuf/issues/9395) ([#&#8203;9435](https://togithub.com/protocolbuffers/protobuf/issues/9435))

### Ruby

-   Fixed a data loss bug that could occur when the number of `optional` fields in a message is an exact multiple of 32. ([#&#8203;9440](https://togithub.com/protocolbuffers/protobuf/issues/9440)).

### PHP

-   Fixed a data loss bug that could occur when the number of `optional` fields in a message is an exact multiple of 32. ([#&#8203;9440](https://togithub.com/protocolbuffers/protobuf/issues/9440)).

</details>

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Author: renovate-bot

java-core/pom.xml

@@ -160,7 +160,7 @@
     <google.http.version>1.41.2</google.http.version>
     <graalvm.version>22.0.0.2</graalvm.version>
     <grpc.version>1.44.0</grpc.version>
-    <protobuf.version>3.19.3</protobuf.version>
+    <protobuf.version>3.19.4</protobuf.version>
     <opencensus.version>0.31.0</opencensus.version>
     <annotations-api.version>1.3.2</annotations-api.version>
     <guava.version>31.0.1-jre</guava.version>