add env variables for QaQC settings

follow-up from tsm-frontend#73 (closed)

need variables:

STA_ROOT_URL=...
QAQC_SETTING_SAQC_VERSION=...

assigned to @maximilian.schaldach

created branch 136-add-env-variables-for-qaqc-settings to address this issue

mentioned in merge request !234 (merged)

mentioned in commit 6d5f7349

closed with merge request !234 (merged)