1. Escaping behavior changed as a result of set-output deprecation.
- Otherwise you'll encounter breaking changes for example "appVersion: "1.0.0"%0Aapplica..."
where %0A is escaped newline \n but shouldn't be escaped.
2. Delimeter is required for multiline strings.
- See here: https://docs.github.com/en/actions/using-workflows/workflow-commands-for-github-actions#multiline-strings
- Delimeter must be random. UUID is a solid choice.
I verified that /proc/sys/kernel/random/uuid does indeed exist on the yq image.