deps: update dependency org.openjdk.jmh:jmh-core to v1.32 (#1221)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| org.openjdk.jmh:jmh-core | `1.31` -> `1.32` | [![age](https://badges.renovateapi.com/packages/maven/org.openjdk.jmh:jmh-core/1.32/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/org.openjdk.jmh:jmh-core/1.32/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/org.openjdk.jmh:jmh-core/1.32/compatibility-slim/1.31)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/org.openjdk.jmh:jmh-core/1.32/confidence-slim/1.31)](https://docs.renovatebot.com/merge-confidence/) |

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google-cloud-spanner/pom.xml

@@ -303,7 +303,7 @@
     <dependency>
       <groupId>org.openjdk.jmh</groupId>
       <artifactId>jmh-core</artifactId>
-      <version>1.31</version>
+      <version>1.32</version>
       <scope>test</scope>
     </dependency>
     <dependency>