Bump de.undercouch.download from 5.3.1 to 5.4.0

Bumps [de.undercouch.download](https://github.com/michel-kraemer/gradle-download-task) from 5.3.1 to 5.4.0.
- [Release notes](https://github.com/michel-kraemer/gradle-download-task/releases)
- [Commits](michel-kraemer/gradle-download-task@5.3.1...5.4.0)

---
updated-dependencies:
- dependency-name: de.undercouch.download
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

build.gradle

@@ -20,7 +20,7 @@ buildscript {
 }
 
 plugins {
-    id 'de.undercouch.download' version '5.3.1'
+    id 'de.undercouch.download' version '5.4.0'
     id 'com.github.ben-manes.versions' version '0.47.0'
 }