ci: bump checkout action to v4

Author: xen0n

.github/workflows/go.yml

@@ -17,7 +17,7 @@ jobs:
         with:
           go-version: '1.20.0-rc.1'
 
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Build
         run: GOEXPERIMENT=coverageredesign go build -cover -v ./cmd/gosmopolitan

.github/workflows/golangci-lint.yml

@@ -15,7 +15,7 @@ jobs:
         uses: actions/setup-go@v4
         with:
           go-version: '>=1.19.0'
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Run golangci-lint
         uses: golangci/golangci-lint-action@v3
         with: