Bump dda version to bring dmgbuild for macOS

Since available Python build dependencies rely on the version of `dda`,
the present change bumps it to bring the `dmgbuild` tool for macOS.

See https://github.com/DataDog/datadog-agent-dev/releases/tag/v0.19.0,
and esp. DataDog/datadog-agent-dev#137.

The PR is kept trivial (revertible) as other changes were brought to
`dda` since last bump from March 2025.

Author: rdesgroppes

.dda/version

@@ -1 +1 @@
-0.10.1
+0.19.0