chore(deps): update actions/checkout action to v4

Author: renovate[bot]

.github/workflows/docker.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v2
       - name: Set up Docker Buildx

.github/workflows/release.yml

@@ -71,7 +71,7 @@ jobs:
           #   cargo-flags: ""
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions-rs/toolchain@v1
         with:
           override: true

.github/workflows/rust.yml

@@ -26,7 +26,7 @@ jobs:
             target: x86_64-unknown-linux-musl
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions-rs/toolchain@v1
         with:
           profile: minimal