Bump org.yaml:snakeyaml from 2.3 to 2.4

Bumps [org.yaml:snakeyaml](https://bitbucket.org/snakeyaml/snakeyaml) from 2.3 to 2.4.
- [Commits](https://bitbucket.org/snakeyaml/snakeyaml/branches/compare/snakeyaml-2.4..snakeyaml-2.3)

---
updated-dependencies:
- dependency-name: org.yaml:snakeyaml
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

bom/build.gradle

@@ -118,7 +118,7 @@ ext {
 //    TODO: jacksonjdk8Version = '2.18.2'monday - failed at runtime
     springdocStarterVersion = '2.2.0'
     jacocoVersion = '0.8.8'
-    snakeYamlVersion = '2.3'
+    snakeYamlVersion = '2.4'
 }
 
 dependencies {