chore(deps): update dependency org.codehaus.mojo:flatten-maven-plugin to v1.7.3

Author: renovate[bot]

pom.xml

@@ -23,7 +23,7 @@
         <maven-gpg-plugin.version>3.2.8</maven-gpg-plugin.version>
         <maven-enforcer-plugin.version>3.6.1</maven-enforcer-plugin.version>
         <central-publishing-maven-plugin.version>0.8.0</central-publishing-maven-plugin.version>
-        <flatten-maven-plugin.version>1.7.2</flatten-maven-plugin.version>
+        <flatten-maven-plugin.version>1.7.3</flatten-maven-plugin.version>
         <compiler-maven-plugin.version>3.14.0</compiler-maven-plugin.version>
         <testcontainers-keycloak.version>3.7.0</testcontainers-keycloak.version>
         <rest-assured.version>5.3.2</rest-assured.version>