gitlab: fix update script after global reformatting

pkgs/applications/version-management/gitlab/update.py

@@ -216,7 +216,10 @@ def update_rubyenv():
 
     # Undo our gemset.nix patches so that bundix runs through
     subprocess.check_output(
-        ["sed", "-i", "-e", "1d", "-e", "s:\\${src}/::g", "gemset.nix"], cwd=rubyenv_dir
+        ["sed", "-i", "-e", "s|\\${src}/||g", "gemset.nix"], cwd=rubyenv_dir
+    )
+    subprocess.check_output(
+        ["sed", "-i", "-e", "s|^src:[[:space:]]||g", "gemset.nix"], cwd=rubyenv_dir
     )
 
     subprocess.check_output(["bundle", "lock"], cwd=rubyenv_dir)
@@ -227,7 +230,7 @@ def update_rubyenv():
             "sed",
             "-i",
             "-e",
-            "1i\\src:",
+            "1c\\src: {",
             "-e",
             's:path = \\(vendor/[^;]*\\);:path = "${src}/\\1";:g',
             "-e",