feat(deps): update build org.codehaus.mojo:flatten-maven-plugin from v1.6.0 to v1.7.0

Author: renovate[bot]

code/pom.xml

@@ -78,7 +78,7 @@
         <dokka-old-versions.location/> <!-- passed as a property when running dokka:dokka-->
         <properties.maven.plugin.version>1.2.1</properties.maven.plugin.version>
         <maven.licence.plugin.version>4.6</maven.licence.plugin.version>
-        <flatten.maven.plugin.version>1.6.0</flatten.maven.plugin.version>
+        <flatten.maven.plugin.version>1.7.0</flatten.maven.plugin.version>
         <kotlin.version>2.0.21</kotlin.version>
         <kotlinx.coroutines.version>1.9.0</kotlinx.coroutines.version>
         <ktor.version>2.3.13</ktor.version>