Fix LRU documentation comment (#2036)

Co-authored-by: Dhruba Basu <7675102+dhrubabasu@users.noreply.github.com>
Co-authored-by: Stephen Buttolph <stephen@avalabs.org>

Author: 3 people

cache/lru_cache.go

@@ -18,7 +18,7 @@ var _ Cacher[struct{}, struct{}] = (*LRU[struct{}, struct{}])(nil)
 type LRU[K comparable, V any] struct {
 	lock     sync.Mutex
 	elements linkedhashmap.LinkedHashmap[K, V]
-	// If set to < 0, will be set internally to 1.
+	// If set to <= 0, will be set internally to 1.
 	Size int
 }