should default env for deployments to pepr_watch_mode

[cmwylie19]

Describe what should be investigated or refactored.

For the admission and the watcher deployment.

                env:
                  {{- toYaml .Values.watcher.env | nindent 12 }}
                  - name: "PEPR_WATCH_MODE"
                    value: "true"

Links to any relevant code

/src/lib/assets/helm.ts

Additional context

Add any other context or screenshots about the technical debt here.

[cmwylie19]

Addressed in #1002