[buildbot] phase2: dlsha2rsyncpl: fix sha2rsync.pl script location

[LEDE Commits]

ynezz pushed a commit to buildbot.git, branch main:
https://git.openwrt.org/731bbbd700166c7e6bcf102f84997f1185a59a6d

commit 731bbbd700166c7e6bcf102f84997f1185a59a6d
Author: Petr Štetiar <ynezz at true.cz>
AuthorDate: Sun Dec 24 08:27:03 2023 +0000

    phase2: dlsha2rsyncpl: fix sha2rsync.pl script location
    
    Fixes following error:
    
     File 'sha2rsync.pl' not available at master
    
    Fixes: c3ddb0db167d ("phase2: use sha2rsync.pl for 'targetupload'")
    Signed-off-by: Petr Štetiar <ynezz at true.cz>
---
 phase2/master.cfg | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/phase2/master.cfg b/phase2/master.cfg
index da22cce..18236b5 100644
--- a/phase2/master.cfg
+++ b/phase2/master.cfg
@@ -641,7 +641,7 @@ for arch in arches:
 
 	factory.addStep(FileDownload(
 		name = "dlsha2rsyncpl",
-		mastersrc = "sha2rsync.pl",
+		mastersrc = scripts_dir + "/sha2rsync.pl",
 		workerdest = "../sha2rsync.pl",
 		mode = 0o755,
 	))