chore: update discord-action version in documentation files

- Update the version of the `appleboy/discord-action` from `master` to `v1.2.0` in multiple README files.

Signed-off-by: appleboy <appleboy.tw@gmail.com>

build: enhance API performance and update dependencies

- Update Docker image source to `ghcr.io` and version to `1.3.2`

Signed-off-by: appleboy <appleboy.tw@gmail.com>

chore(docker): bump version to 1.3.0

Signed-off-by: appleboy <appleboy.tw@gmail.com>

fix: action badge link

feat: update docker image

fix: update actions color