build(deps): bump aws-java-sdk-bom from 1.12.150 to 1.12.151

Bumps [aws-java-sdk-bom](https://github.com/aws/aws-sdk-java) from 1.12.150 to 1.12.151.
- [Release notes](https://github.com/aws/aws-sdk-java/releases)
- [Changelog](https://github.com/aws/aws-sdk-java/blob/master/CHANGELOG.md)
- [Commits](aws/aws-sdk-java@1.12.150...1.12.151)

---
updated-dependencies:
- dependency-name: com.amazonaws:aws-java-sdk-bom
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

sdk1/pom.xml

@@ -149,7 +149,7 @@
             <dependency>
                 <groupId>com.amazonaws</groupId>
                 <artifactId>aws-java-sdk-bom</artifactId>
-                <version>1.12.150</version>
+                <version>1.12.151</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -276,7 +276,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.8.1</version>
+                <version>3.9.0</version>
                 <configuration>
                     <source>1.8</source>
                     <target>1.8</target>