build(deps): bump ch.qos.logback:logback-classic from 1.6.3 to 1.6.4

Bumps [ch.qos.logback:logback-classic](https://github.com/qos-ch/logback) from 1.6.3 to 1.6.4.
- [Release notes](https://github.com/qos-ch/logback/releases)
- [Commits](qos-ch/logback@v_1.6.3...v_1.6.4)

---
updated-dependencies:
- dependency-name: ch.qos.logback:logback-classic
  dependency-version: 1.6.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -18,7 +18,7 @@ openapi-parser-parser = { module = "io.openapiprocessor:openapi-parser" }
 io-jackson = { module = "io.openapiprocessor:io-jackson" }
 diff = { module = "io.github.java-diff-utils:java-diff-utils", version = "4.17" }
 
-logback = "ch.qos.logback:logback-classic:1.6.3"
+logback = "ch.qos.logback:logback-classic:1.6.4"
 
 kotest-bom = "io.kotest:kotest-bom:6.2.5"
 kotest-runner = { module = "io.kotest:kotest-runner-junit5" }