doc: fix wrong RFC number in http2

Priority signaling was deprecated in RFC 9113(not 1993).

Refs: #58313
PR-URL: #58753
Reviewed-By: Tim Perry <[email protected]>
Reviewed-By: Rafael Gonzaga <[email protected]>
Reviewed-By: Ethan Arrowood <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>
Reviewed-By: Trivikram Kamat <[email protected]>
Reviewed-By: Minwoo Jung <[email protected]>

Author: deokjinkim

doc/api/http2.md

@@ -1074,7 +1074,7 @@ added: v8.4.0
 changes:
   - version: v22.17.0
     pr-url: https://github.com/nodejs/node/pull/58313
-    description: Following the deprecation of priority signaling as of RFC 1993,
+    description: Following the deprecation of priority signaling as of RFC 9113,
                  `weight` option is deprecated.
 -->
 
@@ -1581,7 +1581,7 @@ added: v8.4.0
 changes:
   - version: v22.17.0
     pr-url: https://github.com/nodejs/node/pull/58313
-    description: Following the deprecation of priority signaling as of RFC 1993,
+    description: Following the deprecation of priority signaling as of RFC 9113,
                  `weight` and `sumDependencyWeight` options are deprecated.
 -->