Revert Docker image name change from secundra (#165)

Author: mk-mxp

.github/workflows/docker-build-push-image-test.yml

@@ -129,8 +129,8 @@ jobs:
           file: ./Dockerfile
           push: true
           tags: |
-            sencudra/${{ inputs.image_name || github.event.repository.name }}:latest
-            sencudra/${{ inputs.image_name || github.event.repository.name }}:${{ github.sha }}
+            exercism/${{ inputs.image_name || github.event.repository.name }}:latest
+            exercism/${{ inputs.image_name || github.event.repository.name }}:${{ github.sha }}
           cache-from: type=gha
           cache-to: type=gha,mode=max
           build-args: ${{ secrets.DOCKER_BUILD_ARGS }}