Meta: Tell vcpkg we don't need to build vulkan-loader

Trying to build VulkanLoader from source is a giant headache of
unnecessary packages. Every modern distro has vulkan packages, let's
depend on those instead of trying to build something for both wayland
and X11.

.github/actions/setup/action.yml

@@ -26,8 +26,7 @@ runs:
 
         sudo apt-get update
         sudo apt-get install autoconf autoconf-archive automake build-essential cmake libavcodec-dev fonts-liberation2 zip curl tar ccache clang-18 clang++-18 lld-18 gcc-13 g++-13 libstdc++-13-dev \
-            ninja-build unzip qt6-base-dev qt6-tools-dev-tools libqt6svg6-dev qt6-multimedia-dev libgl1-mesa-dev libpulse-dev libssl-dev libegl1-mesa-dev \
-            libx11-dev libxrandr-dev
+            ninja-build unzip qt6-base-dev qt6-tools-dev-tools libqt6svg6-dev qt6-multimedia-dev libgl1-mesa-dev libpulse-dev libssl-dev libegl1-mesa-dev
 
         sudo update-alternatives --install /usr/bin/clang clang /usr/bin/clang-18 100
         sudo update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-18 100

.github/workflows/libjs-test262.yml

@@ -49,7 +49,7 @@ jobs:
       - name: Install dependencies
         run: |
           sudo apt-get update
-          sudo apt-get install -y ninja-build unzip gcc-13 g++-13 jq wget curl zip tar autoconf autoconf-archive automake pkg-config libgl1-mesa-dev libx11-dev libxrandr-dev
+          sudo apt-get install -y ninja-build unzip gcc-13 g++-13 jq wget curl zip tar autoconf autoconf-archive automake pkg-config libgl1-mesa-dev
           test -e /opt/wabt-1.0.35 || (
             cd /tmp
             wget https://github.com/WebAssembly/wabt/releases/download/1.0.35/wabt-1.0.35-ubuntu-20.04.tar.gz

Documentation/BuildInstructionsLadybird.md

@@ -28,7 +28,7 @@ sudo apt update -y && sudo apt install clang-18 -y
 ##### Required packages include, but are not limited to:
 
 ```
-sudo apt install autoconf autoconf-archive automake build-essential cmake libavcodec-dev libgl1-mesa-dev ninja-build qt6-base-dev qt6-tools-dev-tools qt6-multimedia-dev ccache fonts-liberation2 zip unzip curl tar libssl-dev libx11-dev libxrandr-dev
+sudo apt install autoconf autoconf-archive automake build-essential cmake libavcodec-dev libgl1-mesa-dev ninja-build qt6-base-dev qt6-tools-dev-tools qt6-multimedia-dev ccache fonts-liberation2 zip unzip curl tar libssl-dev
 ```
 
 For Ubuntu 20.04 and above, ensure that the Qt6 Wayland packages are available:

Meta/CMake/vcpkg/overlay-ports/vulkan/portfile.cmake

@@ -0,0 +1 @@
+set(VCPKG_POLICY_EMPTY_PACKAGE enabled)

Meta/CMake/vcpkg/overlay-ports/vulkan/vcpkg.json

@@ -0,0 +1,4 @@
+{
+  "name": "vulkan",
+  "version-date": "2023-12-17"
+}