Bump hamcrest-core from 2.2-rc1 to 2.2 (#227)

Bumps [hamcrest-core](https://github.com/hamcrest/JavaHamcrest) from 2.2-rc1 to 2.2.
- [Release notes](https://github.com/hamcrest/JavaHamcrest/releases)
- [Changelog](https://github.com/hamcrest/JavaHamcrest/blob/master/CHANGES.md)
- [Commits](https://github.com/hamcrest/JavaHamcrest/commits/v2.2)

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

zoltar-tests/pom.xml

@@ -88,7 +88,7 @@
     <dependency>
       <groupId>org.hamcrest</groupId>
       <artifactId>hamcrest-core</artifactId>
-      <version>2.2-rc1</version>
+      <version>2.2</version>
       <scope>test</scope>
     </dependency>
   </dependencies>