fix(ci): use git diff --quiet to avoid duplicate diff output in musl E2E

Author: fengmk2

.github/workflows/ci.yml

@@ -435,7 +435,7 @@ jobs:
       - name: Run CLI snapshot tests
         run: |
           RUST_BACKTRACE=1 pnpm test
-          if ! git diff --exit-code; then
+          if ! git diff --quiet; then
             echo "::error::Snapshot diff detected. Run 'pnpm -F vite-plus snap-test' locally and commit the updated snap.txt files."
             git diff --stat
             git diff
@@ -690,7 +690,7 @@ jobs:
               # Run snap tests
               git config --global --add safe.directory /workspace
               RUST_BACKTRACE=1 pnpm test
-              if ! git diff --exit-code; then
+              if ! git diff --quiet; then
                 echo '::error::Snapshot diff detected. Run pnpm -F vite-plus snap-test locally and commit the updated snap.txt files.'
                 git diff --stat
                 git diff

packages/cli/snap-tests-global/migration-eslint-lintstagedrc/snap.txt

@@ -27,7 +27,6 @@ VITE+ - The Unified Toolchain for the Web
 }
 
 > test ! -f .lintstagedrc.json # check lintstagedrc.json is removed
-
 > cat vite.config.ts # check oxlint config merged into vite.config.ts
 import { defineConfig } from 'vite-plus';
 

packages/cli/snap-tests-global/migration-existing-lint-staged-config/snap.txt

@@ -27,7 +27,6 @@ VITE+ - The Unified Toolchain for the Web
 }
 
 > test ! -f .lintstagedrc.json # check lintstagedrc.json (should be deleted after inlining to vite.config.ts)
-
 > cat vite.config.ts # check staged config migrated to vite.config.ts
 import { defineConfig } from 'vite-plus';
 

packages/cli/snap-tests/command-init-inline-config-existing/snap.txt

@@ -2,8 +2,7 @@
 Skipped initialization: 'lint' already exists in 'vite.config.ts'.
 
 > test ! -f .oxlintrc.json # check .oxlintrc.json is not created
-
 > vp fmt --init
 Skipped initialization: 'fmt' already exists in 'vite.config.ts'.
 
-> test ! -f .oxfmtrc.json # check .oxfmtrc.json is not created
+> test ! -f .oxfmtrc.json # check .oxfmtrc.json is not created