Update conda-recipe for numba-rvsdg

[sklam]

Base on #9012.
Depends on numba/numba-rvsdg#91.

• 80eb150 adds runtime constraints for numba-rvsdg.
• 1b19c22 adds import guard and direct user to install numba-rvsdg when the rvsdg-frontend subpackage is used.

[sklam]

Rebase and force pushed so we have a simpler history.

[sklam]

I'd suggest we don't pin to any specific version so that we have rooms to fix stuff without needing to re-release. Also, this is just a test run for the dependency. Only bleeding-edge developers will be using numba-rvsdg and they can manually pin versions if needed.

[esc]

I was thinking we should pin to 0.0.5 once it's released via numba/numba-rvsdg#105. But perhaps just leaving it open is a better idea.

[esc]

@kc611 and I pair reviewed this using the following procedure:

• build the package based on the recipe
• install package in test environment
• run NUMBA_USE_RVSDG_FRONTEND=1 python frontend-test.py to observe the guard being triggered
• install -c numba numba-rvsdg
• run NUMBA_USE_RVSDG_FRONTEND=1 python frontend-test.py and observe it succeed

from numba import njit


@njit
def sum(a):
    c = 0
    for i in range(7):
        c += i
    return c


print(sum(7))