Updating AMV SSEC converter permissions

[ashley314]

Description

With the addition of SSEC AMV into the observation ingest suite for EWOK, the permissions for src/conventional/amv_ssec_ascii2ioda.py need to be changed so it can be executed during the workflow.

Issue(s) addressed

Addresses #https://github.com/JCSDA-internal/skylab/issues/173

Dependencies

List the other PRs that this PR is dependent on:

• [ ] https://github.com/JCSDA-internal/skylab/pull/286
• [ ] https://github.com/JCSDA-internal/ewok/pull/893

Checklist

• [x] I have performed a self-review of my own code
• [x] I have made corresponding changes to the documentation
• [x] I have run the unit tests before creating the PR