fix: build/parent-pom/pom.xml to reduce vulnerabilities

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

build/parent-pom/pom.xml

@@ -45,7 +45,7 @@
         <scala.version>2.12.15</scala.version>
         <scala.compat.version>2.12</scala.compat.version>
         <maven.compiler.source>${java.version}</maven.compiler.source>
-        <logback.version>1.2.10</logback.version>
+        <logback.version>1.4.12</logback.version>
         <slf4j.version>1.7.32</slf4j.version>
         <json4s.version>3.6.12</json4s.version>
         <spring.version>5.2.9.RELEASE</spring.version>