Bump org.openapitools:jackson-databind-nullable from 0.2.6 to 0.2.7

Bumps [org.openapitools:jackson-databind-nullable](https://github.com/OpenAPITools/jackson-databind-nullable) from 0.2.6 to 0.2.7.
- [Release notes](https://github.com/OpenAPITools/jackson-databind-nullable/releases)
- [Commits](OpenAPITools/jackson-databind-nullable@v0.2.6...v0.2.7)

---
updated-dependencies:
- dependency-name: org.openapitools:jackson-databind-nullable
  dependency-version: 0.2.7
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

developer-tools/code-generation-tutorial/client-generation-tutorial/pom.xml

@@ -39,7 +39,7 @@
         <dependency>
             <groupId>org.openapitools</groupId>
             <artifactId>jackson-databind-nullable</artifactId>
-            <version>0.2.6</version>
+            <version>0.2.7</version>
         </dependency>
     </dependencies>