Upgrade Swagger 2.2.14 -> 2.2.15

[Picnic-Bot]

This PR contains the following updates:

Package	Type	Update	Change
Swagger	compile	patch	2.2.14 -> 2.2.15

---

Release Notes

swagger-api/swagger-core

v2.2.15: Swagger-core 2.2.15 released!

Compare Source

• fix oas 3.1 parameter resolving (#​4449)
• fix siblings in response and request body schemas OAS 3.1 resolving (#​4445)

---

• If you want to rebase/retry this PR, check this box

[Picnic-Bot]

Warning
Renovate's suggested commit message is being replaced with improved initial commits to enable automerging. As a side effect, these suggested commit messages might have changed. Consider comparing the initial commit message and this message to determine the most suitable one. Please leave feedback in #sys-renovate.

Suggested commit message:

Upgrade Swagger 2.2.14 -> 2.2.15 (#717)

See:
- https://github.com/swagger-api/swagger-core/releases/tag/v2.2.15
- https://github.com/swagger-api/swagger-core/compare/v2.2.14...v2.2.15

[github-actions]

Looks good. No mutations were possible for these changes.
Mutation testing report by Pitest. Review any surviving mutants by inspecting the line comments under Files changed.

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication

[rickie]

That was an interesting tweak @Stephan202 😉.