update license checker to 1.12.4

[ZheSun88]

No description provided.

[vaadin-bot]

Hi @ZheSun88 and @mshabarov, when i performed cherry-pick to this commit to 8.1, i have encountered the following issue. Can you take a look and pick it manually?
Error Message:
Error: Command failed: git cherry-pick 82b0761
error: could not apply 82b0761... chore: Update license checker to 1.12.4 (#1722)
hint: After resolving the conflicts, mark them with
hint: "git add/rm ", then run
hint: "git cherry-pick --continue".
hint: You can instead skip this commit with "git cherry-pick --skip".
hint: To abort and get back to the state before "git cherry-pick",
hint: run "git cherry-pick --abort".

[vaadin-bot]

Hi @ZheSun88 and @mshabarov, when i performed cherry-pick to this commit to 8.2, i have encountered the following issue. Can you take a look and pick it manually?
Error Message:
Error: Command failed: git cherry-pick 82b0761
error: could not apply 82b0761... chore: Update license checker to 1.12.4 (#1722)
hint: After resolving the conflicts, mark them with
hint: "git add/rm ", then run
hint: "git cherry-pick --continue".
hint: You can instead skip this commit with "git cherry-pick --skip".
hint: To abort and get back to the state before "git cherry-pick",
hint: run "git cherry-pick --abort".