build(deps): bump spring-cloud-dependencies from 2020.0.3 to 2020.0.4

Bumps [spring-cloud-dependencies](https://github.com/spring-cloud/spring-cloud-build) from 2020.0.3 to 2020.0.4.
- [Release notes](https://github.com/spring-cloud/spring-cloud-build/releases)
- [Commits](https://github.com/spring-cloud/spring-cloud-build/commits)

---
updated-dependencies:
- dependency-name: org.springframework.cloud:spring-cloud-dependencies
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

build.gradle

@@ -20,7 +20,7 @@ repositories {
 
 dependencyManagement {
     imports {
-        mavenBom 'org.springframework.cloud:spring-cloud-dependencies:2020.0.3'
+        mavenBom 'org.springframework.cloud:spring-cloud-dependencies:2020.0.4'
     }
 }