[general] Update Spring boot to 2.6 and dependencies

.mvn/wrapper/maven-wrapper.properties

@@ -1,2 +1,2 @@
-distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.4/apache-maven-3.8.4-bin.zip
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.5/apache-maven-3.8.5-bin.zip
 wrapperUrl=https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar

config/application.properties

@@ -54,7 +54,7 @@ spring.jpa.properties.hibernate.dialect=org.sqlite.hibernate.dialect.SQLiteDiale
 #spring.datasource.driver-class-name=org.mariadb.jdbc.Driver
 #spring.datasource.username=
 #spring.datasource.password=
-#spring.datasource.url=jdbc:mariadb://localhost:3306/insert_db_name_here?useSSL=false
+#spring.datasource.url=jdbc:mariadb://localhost:3306/insert_db_name_here?allowPublicKeyRetrieval=true&useSSL=false
 #spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MariaDB10Dialect
 #spring.datasource.hikari.maximum-pool-size=10
 

pom.xml

@@ -5,7 +5,7 @@
     <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
-        <version>2.5.10</version>
+        <version>2.6.6</version>
         <relativePath/> <!-- lookup parent from repository -->
     </parent>
     <groupId>icu.samnya</groupId>
@@ -46,7 +46,6 @@
         <dependency>
             <groupId>io.netty</groupId>
             <artifactId>netty-all</artifactId>
-            <version>4.1.74.Final</version>
         </dependency>
 
         <!-- https://mvnrepository.com/artifact/org.apache.commons/commons-lang3 -->
@@ -77,13 +76,6 @@
         <dependency>
             <groupId>org.flywaydb</groupId>
             <artifactId>flyway-core</artifactId>
-            <version>8.3.0</version>
-        </dependency>
-
-        <dependency>
-            <groupId>org.flywaydb</groupId>
-            <artifactId>flyway-mysql</artifactId>
-            <version>8.3.0</version>
         </dependency>
 
         <dependency>
@@ -124,7 +116,7 @@
             <plugin>
                 <groupId>io.github.fvarrui</groupId>
                 <artifactId>javapackager</artifactId>
-                <version>1.6.5</version>
+                <version>1.6.6</version>
                 <executions>
                     <execution>
                         <phase>package</phase>