Backport PR #15117 on branch 3.6.x (Install playwright browser in jup…

…yterlab.browser_check) (#15122)

* Install playwright browser in jupyterlab.browser_check (#15117)

* Install playwright browser in jupyterlab.check_browser

* Install all the browsers

(cherry picked from commit c040532)

* Pin node for docs job on 3.6.x

---------

Co-authored-by: Nicolas Brichet <32258950+brichet@users.noreply.github.com>

docs/environment.yml

@@ -11,6 +11,6 @@ dependencies:
 - pytest-tornasync
 - pytest-check-links
 - pip
-- nodejs
+- nodejs=18
 - jsx-lexer
 - myst-parser

jupyterlab/browser_check.py

@@ -144,6 +144,7 @@ async def run_browser(url):
             os.makedirs(osp.join(target))
         await run_async_process(["jlpm", "init", "-y"], cwd=target)
         await run_async_process(["jlpm", "add", "playwright@^1.9.2"], cwd=target)
+    await run_async_process(["npx", "playwright", "install"], cwd=target)
     shutil.copy(osp.join(here, "browser-test.js"), osp.join(target, "browser-test.js"))
     await run_async_process(["node", "browser-test.js", url], cwd=target)
 
@@ -155,6 +156,7 @@ def run_browser_sync(url):
         os.makedirs(target)
         subprocess.call(["jlpm", "init", "-y"], cwd=target)
         subprocess.call(["jlpm", "add", "playwright@^1.9.2"], cwd=target)
+    subprocess.call(["npx", "playwright", "install"], cwd=target)
     shutil.copy(osp.join(here, "browser-test.js"), osp.join(target, "browser-test.js"))
     return subprocess.check_call(["node", "browser-test.js", url], cwd=target)