deps: update dependency com.google.cloud:google-cloud-trace to v2.28.0 (

#2670)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:google-cloud-trace](https://togithub.com/googleapis/google-cloud-java) | `2.24.0` -> `2.28.0` | [![age](https://developer.mend.io/api/mc/badges/age/maven/com.google.cloud:google-cloud-trace/2.28.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://developer.mend.io/api/mc/badges/adoption/maven/com.google.cloud:google-cloud-trace/2.28.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://developer.mend.io/api/mc/badges/compatibility/maven/com.google.cloud:google-cloud-trace/2.24.0/2.28.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://developer.mend.io/api/mc/badges/confidence/maven/com.google.cloud:google-cloud-trace/2.24.0/2.28.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) |

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samples/install-without-bom/pom.xml

@@ -22,7 +22,7 @@
     <maven.compiler.source>1.8</maven.compiler.source>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <opencensus.version>0.31.1</opencensus.version>
-    <trace.version>2.24.0</trace.version>
+    <trace.version>2.28.0</trace.version>
     <cloudmonitoring.version>3.23.0</cloudmonitoring.version>
   </properties>
 

samples/snapshot/pom.xml

@@ -22,7 +22,7 @@
     <maven.compiler.source>1.8</maven.compiler.source>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <opencensus.version>0.31.1</opencensus.version>
-    <trace.version>2.24.0</trace.version>
+    <trace.version>2.28.0</trace.version>
     <cloudmonitoring.version>3.23.0</cloudmonitoring.version>
   </properties>