ci: Update to Debian 13 (trixie)

Switch containers from Debian 12 (bookworm) to Debian 13 (trixie).

Trixie ships LLVM 19 by default, so we no longer need to add LLVM repos
to install llvm-19.

Notably, trixie also uses Python 3.13.

Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/6994
Signed-off-by: Valentine Burley <valentine.burley@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35853>

.gitlab-ci/container/debian/test-base.sh

@@ -15,7 +15,7 @@ uncollapsed_section_start debian_setup "Base Debian system setup"
 
 export DEBIAN_FRONTEND=noninteractive
 
-apt-get install -y curl ca-certificates gnupg2 software-properties-common
+apt-get install -y curl ca-certificates gnupg2
 
 sed -i -e 's/http:\/\/deb/https:\/\/deb/g' /etc/apt/sources.list.d/*
 
@@ -118,15 +118,16 @@ DEPS=(
     "libllvm${LLVM_VERSION}"
     liblz4-1
     libpixman-1-0
-    libpng16-16
+    libpng16-16t64
     libproc2-0
-    libpython3.11
-    libtirpc3
+    libpython3.13
+    libtirpc3t64
     libubsan1
     libvulkan1
     libwayland-client0
     libwayland-server0
     libxcb-composite0
+    libxcb-dri2-0
     libxcb-ewmh2
     libxcb-randr0
     libxcb-shm0
@@ -137,6 +138,7 @@ DEPS=(
     libxkbcommon0
     libxrandr2
     libxrender1
+    ntpsec-ntpdig
     libxshmfence1
     ocl-icd-libopencl1
     pciutils
@@ -150,7 +152,6 @@ DEPS=(
     python3-simplejson
     python3-six
     python3-yaml
-    sntp
     socat
     spirv-tools
     sysvinit-core
@@ -167,7 +168,6 @@ DEPS=(
 HW_DEPS=(
     netcat-openbsd
     mount
-    python3-distutils
     python3-serial
     tzdata
     zstd