fix: fixing a security issue in chaindb.

fix: re-enabled dragonheim, since Docker decided not to remove it.

.devcontainer/devcontainer.json

@@ -3,12 +3,12 @@
 {
 	"name": "Go",
 	"build": {
-		// "dockerfile": "Dockerfile",
+		"dockerfile": "Dockerfile",
 		"args": {
 			// Update the VARIANT arg to pick a version of Go: 1, 1.16, 1.17
 			// Append -bullseye or -buster to pin to an OS version.
 			// Use -bullseye variants on local arm64/Apple Silicon.
-			// "VARIANT": "1.20-bullseye",
+			"VARIANT": "1.20-bullseye",
 			// Options
 			"NODE_VERSION": "none"
 		}

internal/chaindb/chaindb.go

@@ -69,7 +69,7 @@ func (db *GagentDb) WriteHCL() error {
 		agentBody.SetAttributeValue("version", cty.StringVal(row.Agent.Shasum))
 	}
 
-	return ioutil.WriteFile("chaindb_out.hcl", f.Bytes(), 0644)
+	return ioutil.WriteFile("chaindb_out.hcl", f.Bytes(), 0600)
 }
 
 /*