Update for Swift 6

.devcontainer/Dockerfile

@@ -0,0 +1,25 @@
+# [Choice] Swift version: 
+ARG VARIANT=6.0.3-jammy
+FROM swift:${VARIANT}
+
+# [Option] Install zsh
+ARG INSTALL_ZSH="true"
+# [Option] Upgrade OS packages to their latest versions
+ARG UPGRADE_PACKAGES="false"
+
+# Install needed packages and setup non-root user. Use a separate RUN statement to add your own dependencies.
+ARG USERNAME=vscode
+ARG USER_UID=1000
+ARG USER_GID=$USER_UID
+COPY library-scripts/common-debian.sh /tmp/library-scripts/
+RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
+    && /bin/bash /tmp/library-scripts/common-debian.sh "${INSTALL_ZSH}" "${USERNAME}" "${USER_UID}" "${USER_GID}" "${UPGRADE_PACKAGES}" "true" "true" \
+    && apt-get autoremove -y && apt-get clean -y && rm -rf /var/lib/apt/lists/* && rm -rf /tmp/library-scripts
+
+# Install Cairo
+RUN export DEBIAN_FRONTEND=noninteractive \
+   && apt-get update \
+   && apt-get install -y libcairo2-dev \
+   libfontconfig-dev \
+   libfreetype6-dev \
+   && apt-get autoremove -y && apt-get clean -y && rm -rf /var/lib/apt/lists/*

.devcontainer/devcontainer.json

@@ -0,0 +1,45 @@
+// For format details, see https://aka.ms/devcontainer.json. For config options, see the README at:
+// https://github.com/microsoft/vscode-dev-containers/tree/v0.245.2/containers/swift
+{
+	"name": "Swift",
+	"build": {
+		"dockerfile": "Dockerfile",
+		"args": {
+			// Update the VARIANT arg to pick a Swift version 
+			"VARIANT": "6.0.3-jammy",
+			// Options
+			"NODE_VERSION": "lts/*",
+			"UPGRADE_PACKAGES": "true"
+		}
+	},
+	"runArgs": [
+		"--cap-add=SYS_PTRACE",
+		"--security-opt",
+		"seccomp=unconfined"
+	],
+
+	// Configure tool-specific properties.
+	"customizations": {
+		// Configure properties specific to VS Code.
+		"vscode": {
+			// Set *default* container specific settings.json values on container create.
+			"settings": { 
+				"lldb.library": "/usr/lib/liblldb.so"
+			},
+
+			// Add the IDs of extensions you want installed when the container is created.
+			"extensions": [
+				"sswg.swift-lang"
+			]
+		}
+	},
+
+	// Use 'forwardPorts' to make a list of ports inside the container available locally.
+	// "forwardPorts": [],
+
+	// Use 'postCreateCommand' to run commands after the container is created.
+	// "postCreateCommand": "",
+
+	// Comment out to connect as root instead. More info: https://aka.ms/vscode-remote/containers/non-root.
+	"remoteUser": "vscode"
+}