Bump io.github.problem4j:problem4j-jackson2 from 1.3.0-RC1 to 1.3.0 (#47)

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gradle/libs.versions.toml

@@ -1,7 +1,7 @@
 [versions]
 nmcp = "1.3.0"
 problem4j-core = "1.3.0"
-problem4j-jackson2 = "1.3.0-RC1"
+problem4j-jackson2 = "1.3.0"
 spotless = "8.1.0"
 spring-boot = "3.5.9"