fix: resolve Validation Meta annotations not working (#4886)

[kuntal1461]

---

Pull Request

Thank you for contributing to swagger-core!

Please fill out the following information to help us review your PR efficiently.

---

Description

This PR fixes an issue where Validation Meta annotations were not being correctly recognized by the ModelResolver.

Problem

When developers use composed validation annotations (for example, a custom @MyNotBlank built on top of @NotBlank), swagger-core failed to introspect these Meta annotations, causing validation metadata to be lost in generated models.

Solution

Enhanced ModelResolver to introspect and apply Meta annotations properly.
A new test class ComposedConstraintMetaAnnotationTest verifies correct handling of composed constraint annotations.

Fixes: #4886

---

Type of Change

• 🐛 Bug fix
• 🧪 Tests

---

Checklist

• I have added/updated tests as needed
• The PR title is descriptive
• The code builds and passes tests locally (mvn clean test / gradle test)
• I have linked related issue Validation Meta annotations not working #4886

---

Screenshots / Additional Context

• Verified that composed constraint annotations are now detected and applied.

• No regressions in direct annotation handling.

• Affected files:

  • modules/swagger-core/src/main/java/io/swagger/v3/core/jackson/ModelResolver.java
  • modules/swagger-core/src/test/java/io/swagger/v3/core/resolving/ComposedConstraintMetaAnnotationTest.java

---