Bump ch.qos.logback:logback-classic from 1.5.3 to 1.5.6 (#707)

Bumps [ch.qos.logback:logback-classic](https://github.com/qos-ch/logback) from 1.5.3 to 1.5.6.
- [Commits](qos-ch/logback@v_1.5.3...v_1.5.6)

---
updated-dependencies:
- dependency-name: ch.qos.logback:logback-classic
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Lauren Kemperman <117678574+lkemperman-cfa@users.noreply.github.com>

build.gradle

@@ -37,8 +37,8 @@ dependencies {
     implementation 'com.jcraft:jsch:0.1.55'
     implementation 'org.springframework.shell:spring-shell-starter:3.2.2'
     implementation 'org.springframework.boot:spring-boot-starter-actuator'
+    implementation group: 'ch.qos.logback', name: 'logback-classic', version: '1.5.6'
     implementation("com.mixpanel:mixpanel-java:1.5.3")
-    implementation group: 'ch.qos.logback', name: 'logback-classic', version: '1.5.3'
     implementation group: 'ch.qos.logback.contrib', name: 'logback-json-classic', version: '0.1.5'
     implementation group: 'ch.qos.logback.contrib', name: 'logback-jackson', version: '0.1.5'
     implementation group: 'com.fasterxml.jackson.core', name: 'jackson-databind', version: '2.17.0'