chore(deps-dev): bump swagger.version from 2.1.21 to 2.1.23 in /dhis-2

Bumps `swagger.version` from 2.1.21 to 2.1.23.

Updates `io.swagger.parser.v3:swagger-parser` from 2.1.21 to 2.1.23
- [Release notes](https://github.com/swagger-api/swagger-parser/releases)
- [Commits](swagger-api/swagger-parser@v2.1.21...v2.1.23)

Updates `io.swagger.parser.v3:swagger-parser-core` from 2.1.21 to 2.1.23

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

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

dhis-2/pom.xml

@@ -212,7 +212,7 @@
     <testcontainers.version>1.20.2</testcontainers.version>
     <jsonassert.version>1.5.3</jsonassert.version>
     <awaitility.version>4.2.2</awaitility.version>
-    <swagger.version>2.1.21</swagger.version>
+    <swagger.version>2.1.23</swagger.version>
     <easy-random.version>5.0.0</easy-random.version>
     <tree.version>0.2.5</tree.version>
     <h2.version>2.3.232</h2.version>