[swarming] define all realm permissions in test_env_handlers.py
[swarming] define all realm permissions in test_env_handlers.py

Change-Id: I856839fc8df5f60b6dd2937dc5784b15f5e60251
Reviewed-on: https://chromium-review.googlesource.com/c/infra/luci/luci-py/+/2253818
Commit-Queue: Junji Watanabe <aaef61ef98ffea505db831f310be2a0eb8492537@google.com>
Commit-Queue: Takuto Ikuta <71927f930fca81015e0f496c65cd126ab1a692e3@chromium.org>
Auto-Submit: Junji Watanabe <aaef61ef98ffea505db831f310be2a0eb8492537@google.com>
Reviewed-by: Takuto Ikuta <71927f930fca81015e0f496c65cd126ab1a692e3@chromium.org>

luci/luci-py,luci/luci-py,luci/luci-py,luci/luci-py