ci: increase fetch-depth for codecov SHA (#8948)

.github/workflows/build-pr.yml

@@ -42,6 +42,8 @@ jobs:
           echo "Yarn $(yarn --version)"
 
       - uses: actions/checkout@v2.3.4
+        with:
+          fetch-depth: 2
 
       - name: Cache Yarn packages
         id: yarn_cache_packages

.github/workflows/build.yml

@@ -72,6 +72,8 @@ jobs:
           echo "Yarn $(yarn --version)"
 
       - uses: actions/checkout@v2.3.4
+        with:
+          fetch-depth: 2
 
       - name: Cache Yarn packages
         id: yarn_cache_packages