Update plugin org.jetbrains.intellij to v1.9.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.jetbrains.intellij	1.8.1 -> 1.9.0

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Configuration

📅 Schedule: Branch creation - "before 9am on Monday every 1 week" in timezone Europe/Berlin, Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

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• If you want to rebase/retry this PR, click this checkbox.

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This PR has been generated by Mend Renovate. View repository job log here.

[codecov]

Codecov Report

Merging #22 (dc5d6a5) into master (76098d4) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master      #22   +/-   ##
=========================================
  Coverage     94.40%   94.40%           
  Complexity       44       44           
=========================================
  Files            10       10           
  Lines           125      125           
  Branches         15       15           
=========================================
  Hits            118      118           
  Misses            1        1           
  Partials          6        6           

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