Bump logback-classic from 1.0.13 to 1.2.0

Bumps logback-classic from 1.0.13 to 1.2.0.

---
updated-dependencies:
- dependency-name: ch.qos.logback:logback-classic
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

pom.xml

@@ -9,7 +9,7 @@
 		<java.version>1.8</java.version>
 		<springframework.version>4.2.4.RELEASE</springframework.version>
 		<slf4j.version>1.7.5</slf4j.version>
-		<logback.version>1.0.13</logback.version>
+		<logback.version>1.2.0</logback.version>
 		<jsp.version>2.2</jsp.version>
 		<jstl.version>1.2</jstl.version>
 		<junit.version>4.13.1</junit.version>