Added release test to workflow

[albsch]

The release test was missing in the workflow.

[bieniusa]

Something odd for the Test step in CI for Erlang 24.

===> Release successfully assembled: _build/default/rel/antidote
[37](https://github.com/AntidoteDB/antidote/runs/6831027292?check_suite_focus=true#step:8:38)
test/release_test.sh
[38](https://github.com/AntidoteDB/antidote/runs/6831027292?check_suite_focus=true#step:8:39)
Starting Test transaction
[39](https://github.com/AntidoteDB/antidote/runs/6831027292?check_suite_focus=true#step:8:40)
Reading counter
[40](https://github.com/AntidoteDB/antidote/runs/6831027292?check_suite_focus=true#step:8:41)
Committing transaction
[41](https://github.com/AntidoteDB/antidote/runs/6831027292?check_suite_focus=true#step:8:42)
Release is working!

It seems to finish successfully, but then keeps spinning (without further output). Any idea?

[albsch]

It's likely that Github Actions is currently having some issues and the antidote instance doesn't have enough time to shut down properly.

[albsch]

Maybe not, I don't know. It's strange that the Antidote instance doesn't want to stop.

[bieniusa]

I find it a bit strange that only Erlang version 24 is affected.