bugfix: replaces import assertion with createRequire construct (#12)

because node 19 json prints a scary message when you use a json import assertion

src/try-import.mts

@@ -1,13 +1,14 @@
 import path from "path/posix";
+import { createRequire } from "module";
 import { coerce, satisfies } from "semver";
-// import extractRootModuleName from "./extract-root-module-name.js";
 
 const LOCAL_MODULE_RE = /^[.]{1,2}($|\/.*)/g;
 const ABSOLUTE_MODULE_RE = /^\/.*/g;
 
 const PACKAGE_RE = "[^/]+";
 const SCOPED_PACKAGE_RE = "@[^/]+(/[^/]+)";
 const ROOT_MODULE_RE = new RegExp(`^(${SCOPED_PACKAGE_RE}|${PACKAGE_RE})`, "g");
+const require = createRequire(import.meta.url);
 
 /**
  * returns the module name that likely contains the package.json
@@ -25,15 +26,28 @@ function extractRootModuleName(pModuleName: string): string | undefined {
   }
 }
 
-async function getVersion(pModuleName: string): Promise<string> {
-  const lManifest = await import(
+function getVersion(pModuleName: string): string {
+  // // The 'proper' way to do this would be with a dynamic import with an
+  // // import assertion. Because it's 'experimental' since node 16 and prints
+  // // an ugly warning on stderr since node 19 we'll be using the require
+  // // hack below in stead.
+  // const lManifest = await import(
+  //   // @ts-expect-error TS2345 extractRootModuleName can return either a string or
+  //   // undefined. If undefined this function will throw. Which is _fine_, even
+  //   // _expected_ in the context it's currently used
+  //   path.join(extractRootModuleName(pModuleName), "package.json"),
+  //   { assert: { type: "json" } }
+  // );
+  // // changes the return type to Promise<string>
+  // return lManifest.default.version;
+  const lManifest = require(path.join(
     // @ts-expect-error TS2345 extractRootModuleName can return either a string or
     // undefined. If undefined this function will throw. Which is _fine_, even
     // _expected_ in the context it's currently used
-    path.join(extractRootModuleName(pModuleName), "package.json"),
-    { assert: { type: "json" } }
-  );
-  return lManifest.default.version;
+    extractRootModuleName(pModuleName),
+    "package.json"
+  ));
+  return lManifest.version;
 }
 
 export default async function tryImport(
@@ -47,7 +61,7 @@ export default async function tryImport(
     lReturnValue = lModule.default;
 
     if (pSemanticVersion) {
-      const lVersion = await getVersion(pModuleName);
+      const lVersion = getVersion(pModuleName);
       const lCoerced = coerce(lVersion);
       if (
         lVersion &&