Bump kiwi-bom from 0.7.2 to 0.7.3 (#700)

Bumps [kiwi-bom](https://github.com/kiwiproject/kiwi-bom) from 0.7.2 to 0.7.3.
- [Release notes](https://github.com/kiwiproject/kiwi-bom/releases)
- [Commits](kiwiproject/kiwi-bom@v0.7.2...v0.7.3)

---
updated-dependencies:
- dependency-name: org.kiwiproject:kiwi-bom
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

pom.xml

@@ -29,7 +29,7 @@
 
     <properties>
         <!-- Versions for required dependencies -->
-        <kiwi-bom.version>0.7.2</kiwi-bom.version>
+        <kiwi-bom.version>0.7.3</kiwi-bom.version>
 
         <!-- Versions for provided dependencies -->
         <retrying-again.version>1.0.6</retrying-again.version>