deps: update dependency com.google.cloud:google-cloud-trace to v2.1.6 (#1743)

[![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.cloud:google-cloud-trace](https://togithub.com/googleapis/java-core) | `2.1.5` -> `2.1.6` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-trace/2.1.6/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-trace/2.1.6/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-trace/2.1.6/compatibility-slim/2.1.5)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-trace/2.1.6/confidence-slim/2.1.5)](https://docs.renovatebot.com/merge-confidence/) |

---

### Release Notes

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

### [`v2.1.6`](https://togithub.com/googleapis/java-core/blob/HEAD/CHANGELOG.md#&#8203;216-httpswwwgithubcomgoogleapisjava-corecomparev215v216-2021-09-21)

[Compare Source](https://togithub.com/googleapis/java-core/compare/v2.1.5...v2.1.6)

</details>

---

### Configuration

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

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

♻ **Rebasing**: Renovate will not automatically rebase this PR, because other commits have been found.

🔕 **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-spanner).

Author: renovate-bot

README.md

@@ -56,13 +56,13 @@ implementation 'com.google.cloud:google-cloud-spanner'
 If you are using Gradle without BOM, add this to your dependencies
 
 ```Groovy
-implementation 'com.google.cloud:google-cloud-spanner:6.21.0'
+implementation 'com.google.cloud:google-cloud-spanner:6.21.1'
 ```
 
 If you are using SBT, add this to your dependencies
 
 ```Scala
-libraryDependencies += "com.google.cloud" % "google-cloud-spanner" % "6.21.0"
+libraryDependencies += "com.google.cloud" % "google-cloud-spanner" % "6.21.1"
 ```
 
 ## Authentication

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>0.31.0</opencensus.version>
-    <trace.version>2.1.5</trace.version>
+    <trace.version>2.1.6</trace.version>
     <cloudmonitoring.version>3.2.5</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>0.31.0</opencensus.version>
-    <trace.version>2.1.5</trace.version>
+    <trace.version>2.1.6</trace.version>
     <cloudmonitoring.version>3.2.5</cloudmonitoring.version>
   </properties>