build(deps): bump swagger-parser.version from 2.1.19 to 2.1.20 (OpenAPITools#614)

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

Author: dependabot[bot]

pom.xml

@@ -83,7 +83,7 @@
         <sonar.host.url>https://sonarcloud.io</sonar.host.url>
         <sonar.moduleKey>${project.artifactId}</sonar.moduleKey>
 
-        <swagger-parser.version>2.1.19</swagger-parser.version>
+        <swagger-parser.version>2.1.20</swagger-parser.version>
         <slf4j.version>2.0.11</slf4j.version>
     </properties>