doc: update ```txt ```fandamental and ```raw code blocks

These are changed to either ```text or ```console.

PR-URL: https://github.com/nodejs/node/pull/33028
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>

1 files changed, 3 insertions, 3 deletions

diff --git a/doc/api/util.md b/doc/api/util.md
index 567ac5f752..d1b0167cfd 100644
--- a/doc/api/util.md
+++ b/doc/api/util.md
@@ -42,7 +42,7 @@ callbackFunction((err, ret) => {
 
 Will print:
 
-```txt
+```text
 hello world
 ```
 
@@ -93,7 +93,7 @@ debuglog('hello from foo [%d]', 123);
 If this program is run with `NODE_DEBUG=foo` in the environment, then
 it will output something like:
 
-```txt
+```console
 FOO 3245: hello from foo [123]
 ```
 
@@ -112,7 +112,7 @@ debuglog('hi there, it\'s foo-bar [%d]', 2333);
 if it is run with `NODE_DEBUG=foo*` in the environment, then it will output
 something like:
 
-```txt
+```console
 FOO-BAR 3257: hi there, it's foo-bar [2333]
 ```