updated versions

Author: Iurii-Dziuban

pom.xml

@@ -33,10 +33,10 @@
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <kotlin.version>1.2.21</kotlin.version>
+        <kotlin.version>1.2.50</kotlin.version>
         <java.version>1.8</java.version>
         <junit.version>4.12</junit.version>
-        <spring.version>5.0.3.RELEASE</spring.version>
+        <spring.version>5.0.7.RELEASE</spring.version>
         <kotlin.compiler.incremental>false</kotlin.compiler.incremental>
         <jacoco.ratio.instruction>0.87</jacoco.ratio.instruction>
         <jacoco.ratio.bundle>0.72</jacoco.ratio.bundle>
@@ -145,7 +145,6 @@
             <plugin>
                 <groupId>org.codehaus.mojo</groupId>
                 <artifactId>cobertura-maven-plugin</artifactId>
-                <version>2.7</version>
                 <configuration>
                     <format>xml</format>
                     <maxmem>256m</maxmem>
@@ -166,7 +165,6 @@
 
             <plugin>
                 <artifactId>maven-release-plugin</artifactId>
-                <version>2.5.3</version>
                 <configuration>
                     <useReleaseProfile>false</useReleaseProfile>
                     <releaseProfiles>release</releaseProfiles>
@@ -242,12 +240,12 @@
                     <dependency>
                         <groupId>com.puppycrawl.tools</groupId>
                         <artifactId>checkstyle</artifactId>
-                        <version>8.8</version>
+                        <version>8.10.1</version>
                     </dependency>
                     <dependency>
                         <groupId>com.github.sevntu-checkstyle</groupId>
                         <artifactId>sevntu-checkstyle-maven-plugin</artifactId>
-                        <version>1.27.0</version>
+                        <version>1.29.0</version>
                     </dependency>
                 </dependencies>
                 <executions>
@@ -297,7 +295,6 @@
             <plugin>
                 <groupId>org.jacoco</groupId>
                 <artifactId>jacoco-maven-plugin</artifactId>
-                <version>0.7.9</version>
                 <configuration>
                     <rules>
                         <rule>