feat: update CI workflows

[spalmurray]

Updates the CI workflows to work in new repo.

[codecov]

❌ 10 Tests Failed:

Tests completed	Failed	Passed	Skipped
7010	10	7000	60

View the top 3 failed test(s) by shortest run time

api.temp.calculator.test_calculator::test_divide

Stack Traces | 0.001s run time

def
                test_divide():
                > assert Calculator.divide(1, 2) == 0.5
                E assert 1.0 == 0.5
                E + where 1.0 = <function Calculator.divide at 0x104c9eb90>(1, 2)
                E + where <function Calculator.divide at 0x104c9eb90> = Calculator.divide
                .../temp/calculator/test_calculator.py:30: AssertionError

api.temp.calculator.test_calculator::test_divide

Stack Traces | 0.001s run time

def
                test_divide():
                > assert Calculator.divide(1, 2) == 0.5
                E assert 1.0 == 0.5
                E + where 1.0 = <function Calculator.divide at 0x104c9eb90>(1, 2)
                E + where <function Calculator.divide at 0x104c9eb90> = Calculator.divide
                .../temp/calculator/test_calculator.py:30: AssertionError

api.temp.calculator.test_calculator::test_divide

Stack Traces | 0.001s run time

def
                test_divide():
                > assert Calculator.divide(1, 2) == 0.5
                E assert 1.0 == 0.5
                E + where 1.0 = <function Calculator.divide at 0x104c9eb90>(1, 2)
                E + where <function Calculator.divide at 0x104c9eb90> = Calculator.divide
                .../temp/calculator/test_calculator.py:30: AssertionError

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[spalmurray]

we only have tests for codecov-cli at the moment.

[spalmurray]

had to update these as they're relative to the git root.

[spalmurray]

this is what we settled on with Rohan and Lindsay. Can change in future if we want.