Bump org.openapitools:openapi-generator-maven-plugin from 7.3.0 to 7.4.0 (#99)

Bumps org.openapitools:openapi-generator-maven-plugin from 7.3.0 to 7.4.0.

---
updated-dependencies:
- dependency-name: org.openapitools:openapi-generator-maven-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pom.xml

@@ -161,7 +161,7 @@
 		<version.io.kokuwa.maven.parent>0.6.16-SNAPSHOT</version.io.kokuwa.maven.parent>
 		<version.io.github.git-commit-id>8.0.1</version.io.github.git-commit-id>
 		<version.org.jacoco>0.8.11</version.org.jacoco>
-		<version.org.openapitools.generator>7.3.0</version.org.openapitools.generator>
+		<version.org.openapitools.generator>7.4.0</version.org.openapitools.generator>
 		<version.org.openapitools.stylevalidator>1.11</version.org.openapitools.stylevalidator>
 		<version.org.sonatype.plugins.nexus-staging>1.6.13</version.org.sonatype.plugins.nexus-staging>