fix: setup swapfile only if runner architecture is X64 or X86

[aldy505]

Using matrix.os only works on self-hosted. SH e2e test on other repositories would still fail.

Refer to https://docs.github.com/en/actions/reference/workflows-and-actions/contexts#runner-context

Follow up to #3874

[aminvakil]

Out of curiosity, does sentry gets tested on x86?

[aldy505]

Out of curiosity, does sentry gets tested on x86?

No, but just in case.

I'm okay with removing it.

[aminvakil]

Checking x86 is not a blocker IMO anyway.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.45%. Comparing base (0f606d2) to head (9dc83c2).
⚠️ Report is 1 commits behind head on master.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #3876   +/-   ##
=======================================
  Coverage   99.45%   99.45%           
=======================================
  Files           3        3           
  Lines         183      183           
=======================================
  Hits          182      182           
  Misses          1        1           

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