knotserver: detect bun.lock files as generated

this is a patch fix, the real fix would be to add this to go-enry's list
of generated file names.

Signed-off-by: oppiliappan <[e-mail]>

knotserver/git/language.go

···
 import (
 	"context"
 	"path"
+	"strings"
 
 	"github.com/go-enry/go-enry/v2"
 	"github.com/go-git/go-git/v5/plumbing/object"
···
 			return nil
 		}
 
-		if enry.IsGenerated(filepath, content) {
+		if enry.IsGenerated(filepath, content) ||
+			enry.IsBinary(content) ||
+			strings.HasSuffix(filepath, "bun.lock") {
 			return nil
 		}