Upgrade minimist to 1.2.6

This CL updates minimist to 1.2.6 to fix a critical security
vulnerability: https://nvd.nist.gov/vuln/detail/CVE-2021-44906

The fix was made by running:
`npm run install-deps audit fix --audit-level=critical`

Bug: none
Change-Id: I51103b525d9969e03000d55af86cebdabc7e0366
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/3591079
Reviewed-by: Mathias Bynens <mathias@chromium.org>
Commit-Queue: Brandon Walderman <brwalder@microsoft.com>

node_modules/@socket.io/base64-arraybuffer/src/index.ts

@@ -0,0 +1,63 @@
+const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
+
+// Use a lookup table to find the index.
+const lookup = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);
+for (let i = 0; i < chars.length; i++) {
+    lookup[chars.charCodeAt(i)] = i;
+}
+
+export const encode = (arraybuffer: ArrayBuffer): string => {
+    let bytes = new Uint8Array(arraybuffer),
+        i,
+        len = bytes.length,
+        base64 = '';
+
+    for (i = 0; i < len; i += 3) {
+        base64 += chars[bytes[i] >> 2];
+        base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];
+        base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];
+        base64 += chars[bytes[i + 2] & 63];
+    }
+
+    if (len % 3 === 2) {
+        base64 = base64.substring(0, base64.length - 1) + '=';
+    } else if (len % 3 === 1) {
+        base64 = base64.substring(0, base64.length - 2) + '==';
+    }
+
+    return base64;
+};
+
+export const decode = (base64: string): ArrayBuffer => {
+    let bufferLength = base64.length * 0.75,
+        len = base64.length,
+        i,
+        p = 0,
+        encoded1,
+        encoded2,
+        encoded3,
+        encoded4;
+
+    if (base64[base64.length - 1] === '=') {
+        bufferLength--;
+        if (base64[base64.length - 2] === '=') {
+            bufferLength--;
+        }
+    }
+
+    const arraybuffer = new ArrayBuffer(bufferLength),
+        bytes = new Uint8Array(arraybuffer);
+
+    for (i = 0; i < len; i += 4) {
+        encoded1 = lookup[base64.charCodeAt(i)];
+        encoded2 = lookup[base64.charCodeAt(i + 1)];
+        encoded3 = lookup[base64.charCodeAt(i + 2)];
+        encoded4 = lookup[base64.charCodeAt(i + 3)];
+
+        bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);
+        bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);
+        bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);
+    }
+
+    return arraybuffer;
+};