build: update the Go dev container

Signed-off-by: Christian Ege <[email protected]>

.devcontainer/devcontainer.json

@@ -3,7 +3,7 @@
 {
 	"name": "Go",
 	// Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
-	"image": "mcr.microsoft.com/devcontainers/go:1-1.20-bullseye"
+	"image": "ghcr.io/graugans/golang:latest"
 
 	// Features to add to the dev container. More info: https://containers.dev/features.
 	// "features": {},
@@ -15,7 +15,16 @@
 	"postCreateCommand": "./.devcontainer/postCreateCommand.sh",
 
 	// Configure tool-specific properties.
-	// "customizations": {},
+	"customizations": {
+		// Configure properties specific to VS Code.
+		"vscode": {
+			"extensions": [
+				"streetsidesoftware.code-spell-checker",
+				"golang.go"
+			]
+		}
+	},
+
 
 	// Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
 	// "remoteUser": "root"