Update Maven version, Maven plugins and dependencies

- Update Maven to latest version (3.8.1).
- Update plugins to latest version (except for Jetty as we don't run latest version on our server).
- Set the version for Maven release plugin.
- Update dependencies to latest version (only patch version increase). Don't update Jetty (same motivation as above).

.gitlab-ci.yml

@@ -8,7 +8,7 @@ stages:
   - package
   - deploy
 
-image: maven:3.6.3-openjdk-11
+image: maven:3.8.1-openjdk-11
 
 variables:
   MAVEN_OPTS: "-Dmaven.repo.local=.m2/repository"

.mvn/wrapper/maven-wrapper.properties

-distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.6.3/apache-maven-3.6.3-bin.zip
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.1/apache-maven-3.8.1-bin.zip
 wrapperUrl=https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar

pom.xml

@@ -49,18 +49,18 @@ SPDX-License-Identifier: Apache-2.0
         <!-- Jetty target version (Debian package) is 9.4
         So we need to use Java EE 7 features and Servlet version 3.1 -->
         <servlet.version>3.1.0</servlet.version>
-        <maria.db.jdbc.driver.version>2.7.2</maria.db.jdbc.driver.version>
-        <junit.version>5.7.1</junit.version>
+        <maria.db.jdbc.driver.version>2.7.3</maria.db.jdbc.driver.version>
+        <junit.version>5.7.2</junit.version>
         <icar.json.version>1.0.0</icar.json.version>
-        <slf4j.version>1.7.30</slf4j.version>
-        <logback.classic.version>1.2.3</logback.classic.version>
+        <slf4j.version>1.7.32</slf4j.version>
+        <logback.classic.version>1.2.4</logback.classic.version>
         <!-- Maven plugins version -->
         <plugin.maven.clean.version>3.1.0</plugin.maven.clean.version>
         <plugin.maven.compiler.version>3.8.1</plugin.maven.compiler.version>
         <plugin.maven.install.version>3.0.0-M1</plugin.maven.install.version>
         <plugin.maven.jar.version>3.2.0</plugin.maven.jar.version>
         <plugin.maven.war.version>3.3.1</plugin.maven.war.version>
-        <plugin.maven.dependency.version>3.1.2</plugin.maven.dependency.version>
+        <plugin.maven.dependency.version>3.2.0</plugin.maven.dependency.version>
         <plugin.maven.resources.version>3.2.0</plugin.maven.resources.version>
         <plugin.maven.surefire.version>3.0.0-M5</plugin.maven.surefire.version>
         <plugin.maven.failsafe.version>3.0.0-M5</plugin.maven.failsafe.version>
@@ -68,6 +68,7 @@ SPDX-License-Identifier: Apache-2.0
         <plugin.maven.enforcer.version>3.0.0-M3</plugin.maven.enforcer.version>
         <plugin.versions.version>2.8.1</plugin.versions.version>
         <plugin.maven.site.version>3.9.1</plugin.maven.site.version>
+        <maven-release-plugin.version>3.0.0-M4</maven-release-plugin.version>
     </properties>
 
     <dependencyManagement>
@@ -158,6 +159,11 @@ SPDX-License-Identifier: Apache-2.0
                     <artifactId>maven-failsafe-plugin</artifactId>
                     <version>${plugin.maven.failsafe.version}</version>
                 </plugin>
+                <plugin>
+                    <groupId>org.apache.maven.plugins</groupId>
+                    <artifactId>maven-release-plugin</artifactId>
+                    <version>${maven-release-plugin.version}</version>
+                </plugin>
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>
                     <artifactId>maven-site-plugin</artifactId>
@@ -181,7 +187,7 @@ SPDX-License-Identifier: Apache-2.0
                             <configuration>
                                 <rules>
                                     <requireMavenVersion>
-                                        <version>3.6.3</version>
+                                        <version>3.8.1</version>
                                     </requireMavenVersion>
                                     <requireJavaVersion>
                                         <version>[11.0,11.99999)</version>