NOHRSC obs retrieval tasks fail when pulling from HPSS

[mkavulich]

Expected behavior

NOHRSC snow observations should be able to be pulled from HPSS

Current behavior

NOHRSC obs retrieval tasks fail

Machines affected

Hera and URSA (any machine that retrieves NOHRSC obs from HPSS)

Steps To Reproduce

1. Run any WE2E test that requires retrieval of NOHRSC data from HPSS (e.g. MET_verification_winter_wx)
2. Observe that the task get_obs_nohrsc fails with a

Detailed Description of Fix (optional)

The problem is due to an f-string that is not properly interpolated, introduced in #10 (https://github.com/dtcenter/dtc-vx-workflow/pull/10/changes#diff-804dc6a2d03f1a629f22995cff9e1a63fb3f1ef5d7194b9dcd8c636a7bfbb8cfL866). Adding the f to make this an f-string fixes the issue.

Additional Information (optional)

This problem was missed due to an incorrect assumption that HPSS tasks failed due to machine problems that we have been observing with other tasks. I am in conversation with NOAA HPSS help to attempt to mitigate this issue.

[mkavulich]

Resolved via #25