fix: upgrade to LitElement 2.5.1 and lit-html 1.4.1

[Artur-]

No description provided.

[vaadin-bot]

SonarQube analysis reported 1 issue

1. NodeUpdater.java#L284: Either log or rethrow this exception.

[vaadin-bot]

Hi @Artur- , this commit cannot be picked to 2.6 by this bot, can you take a look and pick it manually?
Error Message: Error: Command failed: git cherry-pick 8562697
error: could not apply 8562697... fix: upgrade to LitElement 2.5.1 and lit-html 1.4.1 (#10912)
hint: after resolving the conflicts, mark the corrected paths
hint: with 'git add ' or 'git rm '
hint: and commit the result with 'git commit'

[vaadin-bot]

Hi @Artur- , this commit cannot be picked to 2.5 by this bot, can you take a look and pick it manually?
Error Message: Error: Command failed: git cherry-pick 8562697
error: could not apply 8562697... fix: upgrade to LitElement 2.5.1 and lit-html 1.4.1 (#10912)
hint: after resolving the conflicts, mark the corrected paths
hint: with 'git add ' or 'git rm '
hint: and commit the result with 'git commit'

[knoobie]

@Artur- looks like this is missing in the latest 2.5.4 release: https://github.com/vaadin/flow/releases/tag/2.5.4

[Haprog]

Looks like this hasn't been cherry-picked to 2.5 yet (only to 2.6 and 6.0 so far).

[Haprog]

@knoobie I think this won't make it to 2.5 anymore. Vaadin 14.6.0 LTS (with Flow 2.6 containing this fix) should be out in a few days so you can upgrade to that.

[vaadin-bot]

This ticket/PR has been released with platform 20.0.0.beta2. For prerelease versions, it will be included in its final version.