Update actions/checkout action to v4

Author: renovate[bot]

.github/workflows/all-features.yaml

@@ -23,7 +23,7 @@ jobs:
           - x86_64-unknown-linux-gnu
     steps:
       - name: Clone repo
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Install rustup stable
         run: rustup toolchain install stable --profile minimal
       - name: Install Protoc

.github/workflows/centos-fmt-clippy-on-all.yaml

@@ -23,7 +23,7 @@ jobs:
       fail-fast: false
     steps:
       - name: Clone repo
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           # v2 defaults to a shallow checkout, but we need at least to the previous tag
           fetch-depth: 0

.github/workflows/deploy-docs.yaml

@@ -17,7 +17,7 @@ jobs:
     name: Documentation
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
       - name: Install mdbook

.github/workflows/linux-builds-on-master.yaml

@@ -37,7 +37,7 @@ jobs:
             #snap_arch: armhf
     steps:
       - name: Clone repo
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           # v2 defaults to a shallow checkout, but we need at least to the previous tag
           fetch-depth: 0

.github/workflows/linux-builds-on-pr.yaml

@@ -31,7 +31,7 @@ jobs:
             #snap_arch: armhf
     steps:
       - name: Clone repo
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           # v2 defaults to a shallow checkout, but we need at least to the previous tag
           fetch-depth: 0

.github/workflows/linux-builds-on-stable.yaml

@@ -61,7 +61,7 @@ jobs:
             #snap_arch: s390x # skip-pr skip-master
     steps:
       - name: Clone repo
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           # v2 defaults to a shallow checkout, but we need at least to the previous tag
           fetch-depth: 0

.github/workflows/macos-builds-on-all.yaml

@@ -30,7 +30,7 @@ jobs:
           - target: x86_64-apple-darwin
             run_tests: YES
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           # v2 defaults to a shallow checkout, but we need at least to the previous tag
           fetch-depth: 0

.github/workflows/test-docs.yaml

@@ -13,7 +13,7 @@ jobs:
     name: Documentation
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
       - name: Install mdbook

.github/workflows/windows-builds-on-master.yaml

@@ -33,7 +33,7 @@ jobs:
             mingw: https://ci-mirrors.rust-lang.org/rustc/x86_64-6.3.0-release-posix-seh-rt_v5-rev2.7z  # skip-pr
             mingwdir: mingw64  # skip-pr
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         # v2 defaults to a shallow checkout, but we need at least to the previous tag
         with:
           fetch-depth: 0

.github/workflows/windows-builds-on-pr.yaml

@@ -27,7 +27,7 @@ jobs:
           - target: x86_64-pc-windows-msvc
             run_tests: YES
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         # v2 defaults to a shallow checkout, but we need at least to the previous tag
         with:
           fetch-depth: 0