Enhanced ghcr Image prefix for fork compatible

Signed-off-by: Anushka <anush159@in.ibm.com>

Author: anushka159-a

.github/workflows/docker-release.yml

@@ -70,6 +70,7 @@ jobs:
           else
            echo "IMAGE_PREFIX=${{ secrets.DOCKERHUB_USERNAME }}" >> $GITHUB_ENV
           fi
+           echo "GHCR_PREFIX=$GITHUB_REPOSITORY_OWNER" >> $GITHUB_ENV
 
       - name: Build and Push Multi-Platform Docker Image for Committer
         uses: docker/build-push-action@v6
@@ -81,8 +82,8 @@ jobs:
           tags: |
             docker.io/${{ env.IMAGE_PREFIX }}/fabric-x-committer:${{ env.VERSION }}
             docker.io/${{ env.IMAGE_PREFIX }}/fabric-x-committer:latest
-            ghcr.io/${{ env.IMAGE_PREFIX }}/fabric-x-committer:${{ env.VERSION }}
-            ghcr.io/${{ env.IMAGE_PREFIX }}/fabric-x-committer:latest
+            ghcr.io/${{ env.GHCR_PREFIX }}/fabric-x-committer:${{ env.VERSION }}
+            ghcr.io/${{ env.GHCR_PREFIX }}/fabric-x-committer:latest
           build-args: |
             BIN=committer
             ARCHBIN_PATH=archbin
@@ -100,8 +101,8 @@ jobs:
           tags: |
             docker.io/${{ env.IMAGE_PREFIX }}/fabric-x-loadgen:${{ env.VERSION }}
             docker.io/${{ env.IMAGE_PREFIX }}/fabric-x-loadgen:latest
-            ghcr.io/${{ env.IMAGE_PREFIX }}/fabric-x-loadgen:${{ env.VERSION }}
-            ghcr.io/${{ env.IMAGE_PREFIX }}/fabric-x-loadgen:latest
+            ghcr.io/${{ env.GHCR_PREFIX }}/fabric-x-loadgen:${{ env.VERSION }}
+            ghcr.io/${{ env.GHCR_PREFIX }}/fabric-x-loadgen:latest
           build-args: |
             BIN=loadgen
             ARCHBIN_PATH=archbin
@@ -119,8 +120,8 @@ jobs:
           tags: |
             docker.io/${{ env.IMAGE_PREFIX }}/fabric-x-committer-test-node:${{ env.VERSION }}
             docker.io/${{ env.IMAGE_PREFIX }}/fabric-x-committer-test-node:latest
-            ghcr.io/${{ env.IMAGE_PREFIX }}/fabric-x-committer-test-node:${{ env.VERSION }}
-            ghcr.io/${{ env.IMAGE_PREFIX }}/fabric-x-committer-test-node:latest
+            ghcr.io/${{ env.GHCR_PREFIX }}/fabric-x-committer-test-node:${{ env.VERSION }}
+            ghcr.io/${{ env.GHCR_PREFIX }}/fabric-x-committer-test-node:latest
           build-args: |
             ARCHBIN_PATH=archbin
           cache-from: type=registry,ref=docker.io/${{ env.IMAGE_PREFIX }}/fabric-x-committer-test-node:buildcache