[JENKINS-38539, JENKINS-37539] Update remoting from 2.62 to 2.62.2 (#2585)

2.61 does not exist, there was an issue during the release
Changes in 2.62: https://github.com/jenkinsci/remoting/blob/stable-2.x/CHANGELOG.md#2622

* [JENKINS-38539](https://issues.jenkins-ci.org/browse/JENKINS-38539) - 
Stability: Turn on SO_KEEPALIVE and provide CLI option to turn it off again.
(https://github.com/jenkinsci/remoting/pull/110)
* [JENKINS-37539](https://issues.jenkins-ci.org/browse/JENKINS-37539) - 
Prevent <code>NullPointerException</code> in <code>Engine#connect()</code> when host or port parameters are <code>null</code> or empty.
(https://github.com/jenkinsci/remoting/pull/101)
* [CID-152201] - 
Fix resource leak in <code>remoting.jnlp.Main</code>.
(https://github.com/jenkinsci/remoting/pull/102)
* [CID-152200,CID-152202] - 
Resource leak in Encryption Cipher I/O streams on exceptional paths.
(https://github.com/jenkinsci/remoting/pull/104)