Upgrade && add github ci

Author: IceMimosa

.github/workflows/java8.yml

@@ -0,0 +1,25 @@
+name: Java 8 CI
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 1
+      - name: Set up JDK 1.8
+        uses: actions/setup-java@v1
+        with:
+          java-version: 1.8
+      - name: Build with Maven
+        run: mvn --batch-mode --update-snapshots verify

pom.xml

@@ -11,7 +11,7 @@
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-        <kotlin.version>1.4.10</kotlin.version>
+        <kotlin.version>1.4.31</kotlin.version>
         <lucene.version>8.5.2</lucene.version>
         <word.version>1.3</word.version>
         <gson.version>2.8.6</gson.version>
@@ -47,7 +47,7 @@
         <dependency>
             <groupId>mysql</groupId>
             <artifactId>mysql-connector-java</artifactId>
-            <version>5.1.38</version>
+            <version>8.0.16</version>
             <scope>test</scope>
         </dependency>
 
@@ -111,7 +111,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.2</version>
+                <version>3.8.1</version>
                 <configuration>
                     <source>1.8</source>
                     <target>1.8</target>
@@ -141,7 +141,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-source-plugin</artifactId>
-                <version>2.2.1</version>
+                <version>3.2.1</version>
                 <executions>
                     <execution>
                         <phase>package</phase>
@@ -154,7 +154,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-resources-plugin</artifactId>
-                <version>2.7</version>
+                <version>3.2.0</version>
             </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>