Ivan

Fixes https://github.com/liamcottle/reticulum-meshchat/issues/120

Pin Actions to full-length commit SHA

2

Hello Liam, again :) I updated workflows: - Pin all actions to full-length commit SHA for better [supply chain security](https://docs.github.com/en/actions/reference/security/secure-use#using-third-party-actions) - Made workflows link to dynamic repository references. Example commands...

Hello Liam, I have made some improvements to the docker for better security, reproducibility and decreasing image size. - Reduced Image size (switching to Alpine). - Better supply chain security...