introduce data source argmuents (#499)

Albrja/mic 5277/relative-risk-pipeline-for-riskeffect (#496)

Albrja/mic 5277/relative-risk-pipeline-for-riskeffect

Grant users access to relative risk pipeline for RiskEffect class
- *Category*: Feature
- *JIRA issue*: https://jira.ihme.washington.edu/browse/MIC-5277

Changes and notes
-small refactor so users have access to the relative risk pipeline for RiskEffect class

### Testing
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repo, regression testing, etc. At a minimum, this should include an
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drop python 3.9 changes (#493)

Category: CI
JIRA issue: https://jira.ihme.washington.edu/browse/MIC-5537

Changes and notes
Modernize type hinting.

Testing
Ran pytest.

rename DiseaseModel initial_state to residual_state (#492)

drop python 3.9 (#490)

* remove python 3.9

* CHANGELOG

Albrja/mic-5485/scaled-population (#489)

Albrja/mic-5485/scaled-population

Add ScalePopulation component to population package.
- *Category*: Feature
- *JIRA issue*: https://jira.ihme.washington.edu/browse/MIC-5485

Changes and notes
-Adds component to scale base population

Testing
Successfully ran simulation.

Sbachmei/mic 5125/import subpackages to top level namespace (#487)

fix broken import (#484)

fix broken test due to population_view setter restrictions (#483)

* fix broken test due to population_view setter restrictions

* require vivarium>=3.0.3

properly create the population_view in RateTransition (#482)