Bump io.swagger.parser.v3:swagger-parser from 2.1.19 to 2.1.20 (#3945)

Bumps [io.swagger.parser.v3:swagger-parser](https://github.com/swagger-api/swagger-parser) from 2.1.19 to 2.1.20.
- [Release notes](https://github.com/swagger-api/swagger-parser/releases)
- [Commits](swagger-api/swagger-parser@v2.1.19...v2.1.20)

---
updated-dependencies:
- dependency-name: io.swagger.parser.v3:swagger-parser
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
(cherry picked from commit cc92506)

gradle/libs.versions.toml

@@ -63,7 +63,7 @@ yamlkt-version = "0.13.0"
 
 swagger-codegen-version = "3.0.52"
 swagger-codegen-generators-version = "1.0.46"
-swagger-parser-version = "2.1.19"
+swagger-parser-version = "2.1.20"
 
 [libraries]
 kotlin-stdlib = { module = "org.jetbrains.kotlin:kotlin-stdlib", version.ref = "kotlin-version" }