ruff: Fix FURB105 Unnecessary empty string passed to print.

Signed-off-by: Anders Kaseorg <anders@zulip.com>

tools/test-js-with-puppeteer

@@ -140,7 +140,7 @@ or report and ask for help in chat.zulip.org""",
             file=sys.stderr,
         )
         if os.environ.get("GITHUB_ACTIONS"):
-            print("", file=sys.stderr)
+            print(file=sys.stderr)
             print(
                 """
 Screenshots generated on failure are extremely helpful for understanding
@@ -150,7 +150,7 @@ below to download and view the generated screenshots.
             """,
                 file=sys.stderr,
             )
-            print("", file=sys.stderr)
+            print(file=sys.stderr)
         else:
             print(
                 "It's also worthy to see screenshots generated on failure stored under var/puppeteer/*.png"