chore(deps): bump the openapitools group across 1 directory with 2 updates

Bumps the openapitools group with 2 updates in the / directory: [org.openapitools:jackson-databind-nullable](https://github.com/OpenAPITools/jackson-databind-nullable) and [org.openapitools:openapi-generator](https://github.com/openapitools/openapi-generator).


Updates `org.openapitools:jackson-databind-nullable` from 0.2.8 to 0.2.9
- [Release notes](https://github.com/OpenAPITools/jackson-databind-nullable/releases)
- [Commits](OpenAPITools/jackson-databind-nullable@v0.2.8...v0.2.9)

Updates `org.openapitools:openapi-generator` from 7.4.0 to 7.19.0
- [Release notes](https://github.com/openapitools/openapi-generator/releases)
- [Changelog](https://github.com/OpenAPITools/openapi-generator/blob/master/docs/release-summary.md)
- [Commits](OpenAPITools/openapi-generator@v7.4.0...v7.19.0)

---
updated-dependencies:
- dependency-name: org.openapitools:jackson-databind-nullable
  dependency-version: 0.2.9
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: openapitools
- dependency-name: org.openapitools:openapi-generator
  dependency-version: 7.19.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: openapitools
...

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

Author: dependabot[bot]

pom.xml

@@ -44,7 +44,7 @@
 
         <sonar.organization>backbase</sonar.organization>
         <sonar.host.url>https://sonarcloud.io</sonar.host.url>
-        <openapi-generator.version>7.4.0</openapi-generator.version>
+        <openapi-generator.version>7.20.0</openapi-generator.version>
         <aggregate.report.dir>tests/target/site/jacoco-aggregate/jacoco.xml</aggregate.report.dir>
         <sonar.coverage.jacoco.xmlReportPaths>${aggregate.report.dir}</sonar.coverage.jacoco.xmlReportPaths>
 
@@ -271,7 +271,7 @@
             <dependency>
                 <groupId>org.openapitools</groupId>
                 <artifactId>jackson-databind-nullable</artifactId>
-                <version>0.2.8</version>
+                <version>0.2.9</version>
             </dependency>
 
             <dependency>