🔼 Update actions/checkout action to v5

Author: renovate[bot]

.github/workflows/test.yml

@@ -24,7 +24,7 @@ jobs:
     runs-on: ${{ matrix.os }}
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Setup Go
         uses: actions/setup-go@v5

.github/workflows/test_gotip.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ${{ matrix.os }}
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Setup Go
         uses: actions/setup-go@v5