[ELE-1628] Call `dbt deps` on Dockerfile instead of running it on the `edr` run.

[elongl]

Is your feature request related to a problem? Please describe. Running dbt deps on the container run creates network I/O which for some users is problematic and also slows down the execution time.

Describe the solution you'd like Run dbt deps as part of the Dockerfile.

_ELE-1628

[elongl]

The solution should probably be:

ELEMENTARY_PKG_LOCATION=$(pip show elementary-data | grep -i location | awk '{print $2}')
ELEMENTARY_DBT_PROJECT_PATH="$ELEMENTARY_PKG_LOCATION/elementary/monitor/dbt_project"
dbt deps --project-dir "$ELEMENTARY_DBT_PROJECT_PATH"

Or reading this variable via Python code.

[yimingpeng]

heya @elongl, did a PR for this request, please see #1296, any feedback would be appreciated, thanks.