ci: Build the Vulkan screenshot layer as part of VK test builds.

We'll use this in order to capture renderdoc replay under wine for
D3D10/11 traces.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/41662>

.gitlab-ci/build/gitlab-ci.yml

@@ -45,6 +45,7 @@ debian-x86_64:
       -D tools=drm-shim
       -D valgrind=disabled
       -D perfetto=true
+      -D vulkan-layers=screenshot
     S3_ARTIFACT_NAME: mesa-x86_64-default-${BUILDTYPE}
     RUN_MESON_TESTS: "false"  # debian-build-x86_64 already runs these
   artifacts:
@@ -471,6 +472,7 @@ debian-arm64:
       -D freedreno-kmds=msm,virtio
       -D teflon=true
       -D perfetto=true
+      -D vulkan-layers=screenshot
     GALLIUM_ST:
       -D gallium-rusticl=true
       -D legacy-wayland=bind-wayland-display

.gitlab-ci/container/debian/arm64_build.sh

@@ -53,6 +53,7 @@ DEPS=(
     libexpat1-dev
     libflatbuffers-dev
     "libllvm${LLVM_VERSION}"
+    libpng-dev
     libvulkan-dev
     libx11-dev
     libx11-xcb-dev

.gitlab-ci/container/debian/x86_64_build.sh

@@ -35,6 +35,7 @@ DEPS=(
     libgbm-dev
     libglvnd-dev
     liblua5.3-dev
+    libpng-dev
     libxcb-dri2-0-dev
     libxcb-dri3-dev
     libxcb-glx0-dev

.gitlab-ci/image-tags.yml

@@ -20,7 +20,7 @@ include:
 
 variables:
   DEBIAN_BUILD_BASE_TAG: "20250430-imgui.2"
-  DEBIAN_BUILD_TAG: "20260430-imgui.2"
+  DEBIAN_BUILD_TAG: "20260504-screenshot"
 
   DEBIAN_TEST_BASE_TAG: "20260527-gtp"
   DEBIAN_TEST_ANDROID_TAG: "20260526-angle-a7"