Status updates improvements

[ayalash]

In case this PR will be merged, the deployment helm-chart will need to be changed as well, for using the heartbeat.
For example:

      containers:
        - name: status-updates
          securityContext:
            {{- toYaml .Values.securityContext | nindent 12 }}
          image: '{{- .Values.images.backend.repository }}:{{ .Values.images.backend.tag }}'
          imagePullPolicy: {{ .Values.images.backend.pullPolicy }}
          command:
            - /root/platz-status-updates
            - --heartbeat-file-path=/tmp/heartbeat
          livenessProbe:
            exec:
              command:
                - /bin/sh
                - '-c'
                - find /tmp/heartbeat -type f -newermt '5 minute ago' | grep -q -e '.'
            initialDelaySeconds: 120
            timeoutSeconds: 1
            periodSeconds: 60
            successThreshold: 1
            failureThreshold: 1