Upgrade to LitElement 2.5.0 and lit-html 1.4.0

[Artur-]

Description

Upgrades to LitElement 2.5 which is forward compatible with LitElement 3 aka Lit 2
Fixes #10826

Type of change

• Bugfix
• Feature

Checklist

• I have read the contribution guide: https://vaadin.com/docs/latest/guide/contributing/overview/
• I have added a description following the guideline.
• The issue is created in the corresponding repository and I have referenced it.
• I have added tests to ensure my change is effective and works as intended.
• New and existing tests are passing locally with my change.
• I have performed self-review and corrected misspellings.

Additional for Feature type of change

• Enhancement / new feature was discussed in a corresponding GitHub issue and Acceptance Criteria were created.

[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 6.0 by this bot, can you take a look and pick it manually?
Error Message: Error: Command failed: git cherry-pick f0ebed6
error: could not apply f0ebed6... fix: upgrade to LitElement 2.5.0 and lit-html 1.4.0 (#10874)
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 2.6 by this bot, can you take a look and pick it manually?
Error Message: Error: Command failed: git cherry-pick f0ebed6
error: could not apply f0ebed6... fix: upgrade to LitElement 2.5.0 and lit-html 1.4.0 (#10874)
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 f0ebed6
error: could not apply f0ebed6... fix: upgrade to LitElement 2.5.0 and lit-html 1.4.0 (#10874)
hint: after resolving the conflicts, mark the corrected paths
hint: with 'git add ' or 'git rm '
hint: and commit the result with 'git commit'