deps: update dependency com.google.truth.extensions:truth-proto-extension to v1.1.2 (#704)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| com.google.truth.extensions:truth-proto-extension | `1.0.1` -> `1.1.2` | [![age](https://badges.renovateapi.com/packages/maven/com.google.truth.extensions:truth-proto-extension/1.1.2/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.truth.extensions:truth-proto-extension/1.1.2/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.truth.extensions:truth-proto-extension/1.1.2/compatibility-slim/1.0.1)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.truth.extensions:truth-proto-extension/1.1.2/confidence-slim/1.0.1)](https://docs.renovatebot.com/merge-confidence/) |

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pom.xml

@@ -186,7 +186,7 @@
             <dependency>
                 <groupId>com.google.truth.extensions</groupId>
                 <artifactId>truth-proto-extension</artifactId>
-                <version>1.0.1</version>
+                <version>1.1.2</version>
                 <scope>test</scope>
             </dependency>
             <dependency>