fix: bbb-recording-imex/pom.xml to reduce vulnerabilities (#19249)

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JAVA-CHQOSLOGBACK-6094942
- https://snyk.io/vuln/SNYK-JAVA-CHQOSLOGBACK-6094943

Co-authored-by: snyk-bot <snyk-bot@snyk.io>

bbb-recording-imex/pom.xml

@@ -75,7 +75,7 @@
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-core</artifactId>
-            <version>1.2.11</version>
+            <version>1.4.12</version>
         </dependency>
         <dependency>
             <groupId>org.slf4j</groupId>
@@ -85,7 +85,7 @@
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-classic</artifactId>
-            <version>1.2.11</version>
+            <version>1.4.12</version>
         </dependency>
 
         <dependency>