chore: update to version 14.0.11 and align website URLs

packages/util/u8a/concatBuffer.js

@@ -0,0 +1,26 @@
+import { u8aToU8a } from './toU8a.js';
+/**
+ * @name u8aConcat
+ * @summary Creates a concatenated Uint8Array from the inputs.
+ * @description
+ * Concatenates the input arrays into a single `UInt8Array`.
+ * @example
+ * <BR>
+ *
+ * ```javascript
+ * import { { u8aConcat } from '@pezkuwi/util';
+ *
+ * u8aConcat(
+ *   new Uint8Array([1, 2, 3]),
+ *   new Uint8Array([4, 5, 6])
+ * ); // [1, 2, 3, 4, 5, 6]
+ * ```
+ */
+export function u8aConcat(...list) {
+    const count = list.length;
+    const u8as = new Array(count);
+    for (let i = 0; i < count; i++) {
+        u8as[i] = u8aToU8a(list[i]);
+    }
+    return Uint8Array.from(Buffer.concat(u8as));
+}