Bump biz.aQute.bnd.gradle from 4.3.0 to 4.3.1 (#5)

Bumps [biz.aQute.bnd.gradle](https://github.com/bndtools/bnd) from 4.3.0 to 4.3.1.
- [Release notes](https://github.com/bndtools/bnd/releases)
- [Changelog](https://github.com/bndtools/bnd/blob/master/docs/ADDING_RELEASE_DOCS.md)
- [Commits](https://github.com/bndtools/bnd/commits)

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

Author: dependabot-preview[bot]

build.gradle

@@ -3,7 +3,7 @@ buildscript {
 	ext.rxjavaDocVersion = "3.x"
 	ext.licenseVersion = "0.15.0"
 	ext.animalSnifferVersion = "1.5.0"
-	ext.bndVersion = "4.3.0"
+	ext.bndVersion = "4.3.1"
 	ext.mavenPublishPluginVersion = "0.8.0"
 	ext.jacocoVersion = "0.8.5"