Fix crash when closing room during timeline decryption

[SpiritCroc]

Signed-off-by: Tobias Büttner dev@spiritcroc.de

Type of change

• Feature
• Bugfix
• Technical
• Other :

Content

Catch the InterrutedException produced by runBlocking

Motivation and context

When shutting down the executor, the app crashes if we don't catch that exception for an ongoing runBlocking.

Tests

Open the room and close it again.
Can insert a Thread.sleep(1000) into the runBlocking to ensure it is still running.

Tested devices

• Physical
• Emulator
• OS version(s):

Checklist

• Changes has been tested on an Android device or Android emulator with API 21
• UI change has been tested on both light and dark themes
• Accessibility has been taken into account. See https://github.com/vector-im/element-android/blob/develop/CONTRIBUTING.md#accessibility
• Pull request is based on the develop branch
• Pull request includes a new file under ./changelog.d. See https://github.com/vector-im/element-android/blob/develop/CONTRIBUTING.md#changelog
• Pull request includes screenshots or videos if containing UI changes
• Pull request includes a sign off
• You've made a self review of your PR
• If you have modified the screen flow, or added new screens to the application, you have updated the test UiAllScreensSanityTest.allScreensTest()

[BillCarsonFr]

good catch, thx