Docs: Update Transform API (#17477)

- Correct some methods in sample requests

website/content/api-docs/secret/transform.mdx

@@ -2059,8 +2059,6 @@ Only valid for tokenization transformations.
 ```shell-session
 $ curl \
     --header "X-Vault-Token: ..." \
-    --request LIST \
-    --data @payload.json \
     http://127.0.0.1:8200/v1/transform/tokenization/keys/:transform_name
 ```
 
@@ -2111,7 +2109,7 @@ Once trimmed, previous versions of the key cannot be recovered.
 ```shell-session
 $ curl \
     --header "X-Vault-Token: ..." \
-    --request LIST \
+    --request POST \
     --data @payload.json \
     http://127.0.0.1:8200/v1/transform//transform/tokenization/keys/:transform_name/trim
 ```