build(deps): bump actions/checkout from 2 to 4

Bumps [actions/checkout](https://github.com/actions/checkout) from 2 to 4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v2...v4)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/build.yml

@@ -19,7 +19,7 @@ jobs:
     outputs:
       matrix: ${{ steps.set-matrix.outputs.matrix }}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - id: set-matrix
         run: echo "::set-output name=matrix::$(cat proto.json | jq -c .)"
 
@@ -30,7 +30,7 @@ jobs:
       matrix: ${{ fromJson(needs.matrix.outputs.matrix) }}
     steps:
       - name: Check out repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Configure buf
         uses: bufbuild/buf-setup-action@v1
@@ -57,7 +57,7 @@ jobs:
     needs: matrix
     steps:
       - name: Check out repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Cache cargo registry
         uses: actions/cache@v3
@@ -106,7 +106,7 @@ jobs:
       matrix: ${{ fromJson(needs.matrix.outputs.matrix) }}
     steps:
       - name: Check out repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - uses: actions/setup-python@v4
         with:

.github/workflows/lint.yml

@@ -19,7 +19,7 @@ jobs:
     if: github.actor != 'dependabot[bot]'
     steps:
       - name: Check out repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
@@ -30,7 +30,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: Check out repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Lint markdown files
         uses: avto-dev/markdown-lint@v1.5.0
@@ -42,7 +42,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: Check out repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Lint yaml files
         uses: ibiqlik/action-yamllint@v3.1.1
@@ -51,7 +51,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: Check out repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - uses: actions/setup-python@v4
         with:

.github/workflows/publish.yml

@@ -15,7 +15,7 @@ jobs:
     outputs:
       matrix: ${{ steps.set-matrix.outputs.matrix }}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - id: set-matrix
         run: echo "::set-output name=matrix::$(cat proto.json | jq -c .)"
 
@@ -26,7 +26,7 @@ jobs:
       matrix: ${{ fromJson(needs.matrix.outputs.matrix) }}
     steps:
       - name: Check out repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Set up context
         id: project_context
@@ -79,7 +79,7 @@ jobs:
       matrix: ${{ fromJson(needs.matrix.outputs.matrix) }}
     steps:
       - name: Check out repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Set up context
         id: project_context
@@ -119,7 +119,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: Check out repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Setup rust
         uses: actions-rs/toolchain@v1
@@ -159,7 +159,7 @@ jobs:
       matrix: ${{ fromJson(needs.matrix.outputs.matrix) }}
     steps:
       - name: Check out repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Set up context
         id: project_context

.github/workflows/release.yml

@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: Check out repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           token: ${{ secrets.OKP4_TOKEN }}