fix: ci 워크 플로우 pr 에서만 동작하도록 수정

[gihwan-dev]

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Name	Status	Preview	Comments	Updated (UTC)
dnd-11th-8-frontend	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jul 29, 2024 2:40pm
dnd-11th-8-frontend-rvo5	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jul 29, 2024 2:40pm

[gihwan-dev]

Test Coverage

[email protected] coverage /home/runner/work/dnd-11th-8-frontend/dnd-11th-8-frontend
vitest run --coverage

RUN v2.0.4 /home/runner/work/dnd-11th-8-frontend/dnd-11th-8-frontend
Coverage enabled with v8

✓ src/test/utils/sum.test.ts (1 test) 3ms

Test Files 1 passed (1)
Tests 1 passed (1)
Start at 14:40:40
Duration 482ms (transform 25ms, setup 0ms, collect 19ms, tests 3ms, environment 0ms, prepare 65ms)

% Coverage report from v8

=============================== Coverage summary ===============================

Statements   : 0% ( 0/243 )
Branches     : 0% ( 0/14 )
Functions    : 0% ( 0/14 )
Lines        : 0% ( 0/243 )
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