Bump mockito.version from 2.25.1 to 2.26.0 (#2725)

Bumps `mockito.version` from 2.25.1 to 2.26.0.

Updates `mockito-core` from 2.25.1 to 2.26.0
- [Release notes](https://github.com/mockito/mockito/releases)
- [Commits](mockito/mockito@v2.25.1...v2.26.0)

Updates `mockito-junit-jupiter` from 2.25.1 to 2.26.0
- [Release notes](https://github.com/mockito/mockito/releases)
- [Commits](mockito/mockito@v2.25.1...v2.26.0)

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

pom.xml

@@ -68,7 +68,7 @@
         <junit.version>4.12</junit.version>
         <junit5.version>5.4.2</junit5.version>
         <assertj.version>3.12.2</assertj.version>
-        <mockito.version>2.25.1</mockito.version>
+        <mockito.version>2.26.0</mockito.version>
     </properties>
 
     <developers>