Update limits.h

Updates Crypto.getRandomValues() link to point to the spec (canonical source).

Author: bryanmcquade

include/proxy-wasm/limits.h

@@ -26,7 +26,7 @@
 
 // Maximum allowed random_get buffer size. This value is consistent with
 // the JavaScript Crypto.getRandomValues() maximum buffer size. See
-// https://developer.mozilla.org/en-US/docs/Web/API/Crypto/getRandomValues#exceptions
+// https://w3c.github.io/webcrypto/#Crypto-method-getRandomValues
 #ifndef PROXY_WASM_HOST_WASI_RANDOM_GET_MAX_SIZE_BYTES
 #define PROXY_WASM_HOST_WASI_RANDOM_GET_MAX_SIZE_BYTES (64 * 1024)
 #endif