[chore] Fix lychee config keys (#1404)

Author: songy23

.github/lychee.toml

@@ -1,11 +1,6 @@
-include-fragments = true
-
 accept = ["200..=299", "429"]
 
 exclude  = [
     "^http(s)?://localhost",
     "^http(s)?://example.com"
 ]
-
-# better to be safe and avoid failures
-max-retries = 6