minor #19369 [Encore] Update note instructing users to upgrade symfony-cli for node.js 17+ tls compatibility (sarim)

This PR was merged into the 5.4 branch.

Discussion
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[Encore] Update note instructing users to upgrade symfony-cli for node.js 17+ tls compatibility

This note telling users to use `--openssl-legacy-provider` flag is no longer needed with certificate generated by latest symfony-cli.

Context:
symfony-cli/cert#4
symfony-cli/cert#7
symfony/webpack-encore#1187

Commits
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dd092c7 [Encore] Update note instructing users to upgrade symfony-cli for node.js 17+ tls compatibility

Author: OskarStark

frontend/encore/dev-server.rst

@@ -77,12 +77,9 @@ server SSL certificate:
 
 .. note::
 
-    If you are using Node.js 17 or newer, you have to run the ``dev-server`` command with the
-    ``--openssl-legacy-provider`` option:
+    If you are using Node.js 17 or newer and ``dev-server`` fails to start with TLS error, the certificate file might be generated by an old version of **symfony-cli**. Upgrade **symfony-cli** to the latest version, delete the old ``~/.symfony5/certs/default.p12`` file, and start symfony server again.
 
-    .. code-block:: terminal
-
-        $ NODE_OPTIONS=--openssl-legacy-provider npm run dev-server
+    This generates a new ``default.p12`` file suitable for use with recent Node.js versions.
 
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