chore: Bump solo action version to v0.16.0

Signed-off-by: Ndacyayisenga-droid <[email protected]>

Author: Ndacyayisenga-droid

.github/workflows/maven.yml

@@ -32,7 +32,7 @@ jobs:
 
       - name: Prepare Hiero Solo
         id: solo
-        uses: hiero-ledger/hiero-solo-action@6a1a77601cf3e69661fb6880530a4edf656b40d5 # v0.14.0
+        uses: hiero-ledger/hiero-solo-action@fbca3e7a99ce9aa8a250563a81187abe115e0dad # v0.16.0
         with:
           installMirrorNode: true
           hieroVersion: v0.66.0