chore(deps): update dependency com.fasterxml.jackson.core:jackson-databind to v2.21.0

Author: renovate[bot]

build.gradle

@@ -31,7 +31,7 @@ gradlePlugin {
 
 dependencies {
     // Jackson for YAML processing
-    implementation 'com.fasterxml.jackson.core:jackson-databind:2.18.3'
+    implementation 'com.fasterxml.jackson.core:jackson-databind:2.21.0'
     implementation 'com.fasterxml.jackson.dataformat:jackson-dataformat-yaml:2.18.3'
 
     // SnakeYAML for reqstool_config.yml generation