build: update actions/checkout action to v4

Author: angular-robot

.github/workflows/ci.yml

@@ -24,7 +24,7 @@ jobs:
     outputs:
       snapshots: ${{ steps.filter.outputs.snapshots }}
     steps:
-      - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4.0.0
         with:
           persist-credentials: false
       - uses: dorny/paths-filter@4512585405083f25c027a35db413c2b3b9006d50 # v2.11.1