Bump io.swagger:swagger-core from 1.6.14 to 1.6.15

Bumps [io.swagger:swagger-core](https://github.com/swagger-api/swagger-core) from 1.6.14 to 1.6.15.
- [Release notes](https://github.com/swagger-api/swagger-core/releases)
- [Commits](swagger-api/swagger-core@v1.6.14...v1.6.15)

---
updated-dependencies:
- dependency-name: io.swagger:swagger-core
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

pom.xml

@@ -234,7 +234,7 @@
             <dependency>
                 <groupId>io.swagger</groupId>
                 <artifactId>swagger-core</artifactId>
-                <version>1.6.14</version>
+                <version>1.6.15</version>
             </dependency>
 
             <dependency>