add sensitivity analysis

[Erikhu1]

• Add sensitivity analysis flag to trudag publish
• Add and pin required dependencies for the function
• Re-generate requirements.txt with --allow-unsafe to avoid 'unpinned' warning for pip and setuptools

Note: wait until CodeThink improves the sensitivity analysis feature

[coveralls]

coverage: 99.186%. remained the same
when pulling 85776e6 on erikhu1-sensitivity_analysis
into 18e1f0d on main.