Bump powertools-metrics (#103)

Bumps [powertools-metrics](https://github.com/awslabs/aws-lambda-powertools-java) from 1.3.0 to 1.4.0.
- [Release notes](https://github.com/awslabs/aws-lambda-powertools-java/releases)
- [Changelog](https://github.com/awslabs/aws-lambda-powertools-java/blob/master/CHANGELOG.md)
- [Commits](aws-powertools/powertools-lambda-java@v1.3.0...v1.4.0)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

templates/java11/cookiecutter-aws-sam-hello-powertools-java-maven/{{ cookiecutter.project_slug }}/HelloWorldFunction/pom.xml

@@ -27,7 +27,7 @@
         <dependency>
             <groupId>software.amazon.lambda</groupId>
             <artifactId>powertools-metrics</artifactId>
-            <version>1.3.0</version>
+            <version>1.4.0</version>
         </dependency>
         <dependency>
             <groupId>com.amazonaws</groupId>