Merge pull request #70 from authlete/dependabot/maven/ch.qos.logback-logback-core-1.3.15

Bump ch.qos.logback:logback-core from 1.2.13 to 1.3.15

Author: Toinetoine1

pom.xml

@@ -127,7 +127,7 @@
     <dependency>
       <groupId>ch.qos.logback</groupId>
       <artifactId>logback-core</artifactId>
-      <version>1.2.13</version>
+      <version>1.3.15</version>
     </dependency>
 
     <dependency>