Bump ch.qos.logback:logback-core in /sagas/CloudBank-DEMO (#456)

Bumps [ch.qos.logback:logback-core](https://github.com/qos-ch/logback) from 1.5.13 to 1.5.19.
- [Release notes](https://github.com/qos-ch/logback/releases)
- [Commits](qos-ch/logback@v_1.5.13...v_1.5.19)

---
updated-dependencies:
- dependency-name: ch.qos.logback:logback-core
  dependency-version: 1.5.19
  dependency-type: direct:production
...

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sagas/CloudBank-DEMO/pom.xml

@@ -65,7 +65,7 @@
     <dependency>
       <groupId>ch.qos.logback</groupId>
       <artifactId>logback-core</artifactId>
-      <version>1.5.13</version>
+      <version>1.5.19</version>
     </dependency>
     <dependency>
       <groupId>ch.qos.logback</groupId>