Bump mockito.version from 3.3.3 to 3.4.4 (#1589)

Bumps `mockito.version` from 3.3.3 to 3.4.4.

Updates `mockito-core` from 3.3.3 to 3.4.4
- [Release notes](https://github.com/mockito/mockito/releases)
- [Commits](mockito/mockito@v3.3.3...v3.4.4)

Updates `mockito-junit-jupiter` from 3.3.3 to 3.4.4
- [Release notes](https://github.com/mockito/mockito/releases)
- [Commits](mockito/mockito@v3.3.3...v3.4.4)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Author: dependabot-preview[bot]

exonum-java-binding/pom.xml

@@ -125,7 +125,7 @@
     <junit.version>4.13</junit.version>
     <junit.jupiter.version>5.6.2</junit.jupiter.version>
     <protobuf.version>3.11.0</protobuf.version>
-    <mockito.version>3.3.3</mockito.version>
+    <mockito.version>3.4.4</mockito.version>
     <guava.version>29.0-jre</guava.version>
     <vertx.version>3.9.1</vertx.version>
     <equalsverifier.version>3.4</equalsverifier.version>

exonum-light-client/pom.xml

@@ -71,7 +71,7 @@
     <lombok.version>1.18.12</lombok.version>
     <!--Test dependencies-->
     <junit.jupiter.version>5.6.2</junit.jupiter.version>
-    <mockito.version>3.3.3</mockito.version>
+    <mockito.version>3.4.4</mockito.version>
     <hamcrest.version>2.2</hamcrest.version>
     <equalsverifier.version>3.4</equalsverifier.version>
     <!--Plugins-->