Update dependency typescript to v6 (#121)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Mads Jon Nielsen <madsjon@gmail.com>

Author: renovate[bot]

package-lock.json

@@ -32,7 +32,7 @@
     "jest": "30.x",
     "jiti": "^2.6.1",
     "ts-jest": "29.x",
-    "typescript": "5.x",
+    "typescript": "6.x",
     "typescript-eslint": "^8.46.4"
   },
   "engines": {

package.json

@@ -3,7 +3,7 @@ import fs from "fs";
 import {AssertionError} from "assert";
 import nunjucks from "nunjucks";
 import {JTDSchemaType} from "ajv/dist/types/jtd-schema.js";
-import Ajv from "ajv/dist/jtd.js";
+import {Ajv} from "ajv/dist/jtd.js";
 import {assertObjectOrNull} from "./asserts.js";
 
 export interface SwarmAppNetworkConfig {
@@ -180,7 +180,7 @@ export const swarmAppConfigSchema: JTDSchemaType<SwarmAppConfig> = {
     },
 };
 
-export async function loadSwarmAppConfig (configFile: string, throwOnUndefined: boolean, injectHostEnv: boolean | null = true, templatingInputFile: string | null) {
+export async function loadSwarmAppConfig (configFile: string, throwOnUndefined: boolean, injectHostEnv: boolean | null = true, templatingInputFile: string | null): Promise<SwarmAppConfig> {
     const nunjucksEnv = new nunjucks.Environment(null, {throwOnUndefined});
     const nunjucksEnvInput = injectHostEnv ? {env: process.env} : {};
     const templatingInput = yaml.load(templatingInputFile ? await fs.promises.readFile(templatingInputFile, "utf8") : "---");

src/swarm-app-config.ts

@@ -1,8 +1,8 @@
 {
   "compilerOptions": {
     "target": "ESNext",
-    "moduleResolution": "node",
-    "module": "ESNext",
+    "moduleResolution": "nodenext",
+    "module": "nodenext",
     "esModuleInterop": true,
     "forceConsistentCasingInFileNames": true,
     "inlineSourceMap": true,
@@ -11,6 +11,7 @@
     "skipLibCheck": true,
     "noUncheckedIndexedAccess": true,
     "noImplicitOverride": true,
-    "exactOptionalPropertyTypes": true
+    "exactOptionalPropertyTypes": true,
+    "isolatedModules": true
   }
 }