Bump maven-compiler-plugin from 3.8.0 to 3.8.1

Bumps [maven-compiler-plugin](https://github.com/apache/maven-compiler-plugin) from 3.8.0 to 3.8.1.
- [Release notes](https://github.com/apache/maven-compiler-plugin/releases)
- [Commits](https://github.com/apache/maven-compiler-plugin/compare/maven-compiler-plugin-3.8.0...maven-compiler-plugin-3.8.1)

---
updated-dependencies:
- dependency-name: org.apache.maven.plugins:maven-compiler-plugin
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

amazon-kinesis-client-multilang/pom.xml

@@ -130,7 +130,7 @@
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-compiler-plugin</artifactId>
-          <version>3.2</version>
+          <version>3.8.1</version>
           <configuration>
             <source>1.8</source>
             <target>1.8</target>

amazon-kinesis-client/pom.xml

@@ -183,7 +183,7 @@
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-compiler-plugin</artifactId>
-          <version>3.2</version>
+          <version>3.8.1</version>
           <configuration>
             <source>1.8</source>
             <target>1.8</target>

pom.xml

@@ -77,7 +77,7 @@
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-compiler-plugin</artifactId>
-          <version>3.8.0</version>
+          <version>3.8.1</version>
           <configuration>
             <source>1.8</source>
             <target>1.8</target>