Update refs to sonatype

Signed-off-by: Nana Essilfie-Conduah <nana@swirldslabs.com>

Author: Nana-EC

.github/workflows/release-push-image.yaml

@@ -190,8 +190,8 @@ jobs:
       - name: Publish protobuf jar to maven local repo
         if: "${{ github.event_name != 'workflow_dispatch' || github.event.inputs.publish == 'true' }}"
         env:
-          NEXUS_USERNAME: ${{ secrets.svcs-ossrh-username }}
-          NEXUS_PASSWORD: ${{ secrets.svcs-ossrh-password }}
+          NEXUS_USERNAME: ${{ secrets.SONATYPE_USERNAME }}
+          NEXUS_PASSWORD: ${{ secrets.SONATYPE_PASSWORD }}
         run: ${GRADLE_EXEC} :block-node-protobuf:releaseMavenCentral -PpublishingPackageGroup=org.hiero.block -PpublishSigningEnabled=true --scan --no-configuration-cache
 
   publish-simulator: