Example is not working

[dharmendrakariya]

I am trying to follow the given example but I am getting error in deploy step

/usr/bin/docker run --name e1cc511549677844234a5e894296724e78ce93_560a3a --label e1cc51 --workdir /github/workspace --rm -e KUBECONFIG_FILE -e INPUT_TOKEN -e INPUT_SECRETS -e INPUT_VERSION -e INPUT_CHART -e INPUT_RELEASE -e INPUT_NAMESPACE -e INPUT_VALUES -e INPUT_TASK -e INPUT_DRY-RUN -e INPUT_ATOMIC -e INPUT_HELM -e INPUT_VALUE-FILES -e HOME -e GITHUB_JOB -e GITHUB_REF -e GITHUB_SHA -e GITHUB_REPOSITORY -e GITHUB_REPOSITORY_OWNER -e GITHUB_RUN_ID -e GITHUB_RUN_NUMBER -e GITHUB_RETENTION_DAYS -e GITHUB_RUN_ATTEMPT -e GITHUB_ACTOR -e GITHUB_WORKFLOW -e GITHUB_HEAD_REF -e GITHUB_BASE_REF -e GITHUB_EVENT_NAME -e GITHUB_SERVER_URL -e GITHUB_API_URL -e GITHUB_GRAPHQL_URL -e GITHUB_WORKSPACE -e GITHUB_ACTION -e GITHUB_EVENT_PATH -e GITHUB_ACTION_REPOSITORY -e GITHUB_ACTION_REF -e GITHUB_PATH -e GITHUB_ENV -e RUNNER_OS -e RUNNER_NAME -e RUNNER_TOOL_CACHE -e RUNNER_TEMP -e RUNNER_WORKSPACE -e ACTIONS_RUNTIME_URL -e ACTIONS_RUNTIME_TOKEN -e ACTIONS_CACHE_URL -e GITHUB_ACTIONS=true -e CI=true -v "/var/run/docker.sock":"/var/run/docker.sock" -v "/home/runner/work/_temp/_github_home":"/github/home" -v "/home/runner/work/_temp/_github_workflow":"/github/workflow" -v "/home/runner/work/_temp/_runner_file_commands":"/github/file_commands" -v "/home/runner/work/deliverybot-demo/deliverybot-demo":"/github/workspace" e1cc51:1549677844234a5e894296724e78ce93
helm upgrade staging-myapp /usr/src/charts/app --install --wait --namespace=example-helm --set=app.name=staging-myapp --set=app.version=1a81dfb2d974aa3bd9d6c5faf58c62c4a838e732 --values=./config/staging.yml --values=./config/_common.yml --values=./values.yml --atomic
Error: could not find tiller
Error: Error: The process 'helm' failed with exit code 1
Error: The process 'helm' failed with exit code 1

can you please update the helm version

[cloudscape-germany]

You need to install helm into your cluster first.