Bump OpenElements/hedera-solo-action from 0.3 to 0.6

Bumps [OpenElements/hedera-solo-action](https://github.com/openelements/hedera-solo-action) from 0.3 to 0.6.
- [Release notes](https://github.com/openelements/hedera-solo-action/releases)
- [Commits](hiero-ledger/hiero-solo-action@v0.3...v0.6)

---
updated-dependencies:
- dependency-name: OpenElements/hedera-solo-action
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/maven.yml

@@ -32,7 +32,7 @@ jobs:
 
       - name: Prepare Hedera Solo
         id: solo
-        uses: OpenElements/hedera-solo-action@v0.3
+        uses: OpenElements/hedera-solo-action@v0.6
         with:
           installMirrorNode: true