feat: Exposing the rsync that we have to the js (#1907)

chore: Make the commit do by checksum.

chore: Remove the logging at the start

chore: use the defaults of the original.

chore: Convert the error into just the source.

chore: Remove some of the unwraps

.github/workflows/backend.yaml

@@ -221,6 +221,7 @@ jobs:
         sh -c '
           apt-get update &&
           apt-get install -y ca-certificates &&
+          apt-get install -y rsync &&
           cd /home/rust/src &&
           mkdir -p ~/.cargo/bin &&
           tar -zxvf nextest-aarch64.tar.gz -C ${CARGO_HOME:-~/.cargo}/bin &&