Roll back to jackson version without deprecation fail

The Jackson maintainers did not understand the difference of the asText() and asText(defaultValue) methods for NullNodes and MissingNodes and deprecated the variant with fallback value.
This causes issues:
FasterXML/jackson-databind#4471

pom.xml

@@ -556,7 +556,7 @@
             <dependency>
                 <groupId>com.fasterxml.jackson</groupId>
                 <artifactId>jackson-bom</artifactId>
-                <version>2.17.0</version>
+                <version>2.16.0</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>