Update Hiero Solo GH action version + pin by commit hash

Signed-off-by: Alexander Shenshin <alexander.shenshin@dsr-corporation.com>

Author: AlexanderShenshin

.github/workflows/main.yml

@@ -45,7 +45,7 @@ jobs:
 
       - name: Prepare Hiero Solo
         id: solo
-        uses: OpenElements/hedera-solo-action@v0.4
+        uses: hiero-ledger/hiero-solo-action@35efe2334bffb73298716402a5c688321ec29260
         with:
           installMirrorNode: true