doc: fix tokenintrospection timeout (#4020)

doc: fix tokenintrospection timeout

Signed-off-by: Sandor Szücs <sandor.szuecs@zalando.de>

Author: szuecs

filters/auth/doc.go

@@ -219,7 +219,7 @@ Example response from the openid-configuration endpoint:
 Additionally, you can also pass CLI argument
 -oauth2-tokenintrospect-timeout=<OAuthTokenintrospectTimeout> to control the
 default timeout duration for OAuth validation and OpenID provider
-configuration requests. The default tokenintrospect timeout is 2s.
+configuration requests. The default tokenintrospect timeout is 3s.
 
 All oauthTokenintrospection* filters will work on the tokenintrospect response.