fix(ci): fetch base sha in pr jobs

.github/workflows/pr.yml

@@ -19,6 +19,8 @@ jobs:
         uses: actions/checkout@v4
         with:
           fetch-depth: 0
+        with:
+          fetch-depth: 0
 
       - name: Block manual lockfile edits
         if: github.head_ref != 'chore/refresh-lockfile'
@@ -96,6 +98,8 @@ jobs:
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
 
       - name: Setup pnpm
         uses: pnpm/action-setup@v4