Outdated Docker image `peterdavehello/shfmt:2.6.3` in `shfmt.yml`

[MikeMcC399]

Current status

.github/workflows/shfmt.yml uses the Docker image

peterdavehello/shfmt:2.6.3

published by @PeterDaveHello in Jan 2019.

Suggestion

Check if the version of peterdavehello/shfmt used in .github/workflows/shfmt.yml should be updated to a later version.

Also consider the comment in https://hub.docker.com/r/peterdavehello/shfmt

Please note that I originally built this Docker image because that there wasn't an official one, but now there it is, and it also use the Dockerfile in this repository as the reference to create the official one, as you can see mvdan/sh#68, this repository might not be actively maintained.

Check if the Docker image https://hub.docker.com/r/mvdan/shfmt/ could be a replacement.