package-source-build: Disable http pipelining

Seems http pipeline sometimes causes broken downloads; While this really
needs fixing in apt work around it for now so CI doesn't hit it.

Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>

apertis-package-source-builder/overlay/usr/bin/ci-buildpackage

@@ -23,13 +23,7 @@ export DEBIAN_FRONTEND=noninteractive
 
 apt-get -qy update
 apt-get -qy -o APT::Get::Build-Dep-Automatic=yes \
-  -o Debug::pkgAcquire=yes \
-  -o Debug::pkgAcquire::Worker=yes \
-  -o Debug::pkgAcquire::Auth=yes \
-  -o Debug::Acquire::https=yes \
-  -o Debug::Acquire::http=yes \
-  -o Debug::Hashes=yes \
-  -o Debug::BuildDeps=yes \
+  -o Acquire::http::Pipeline-Depth=0 \
   build-dep "$(pwd)"
 
 dpkg-checkbuilddeps