Bump actions/checkout from 2 to 2.3.4 (#43)

Bumps [actions/checkout](https://github.com/actions/checkout) from 2 to 2.3.4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v2...v2.3.4)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/integration.yaml

@@ -9,7 +9,7 @@ jobs:
     name: Test
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v2.3.4
       - name: Setup go
         uses: actions/setup-go@v2.1.3
         with:
@@ -23,7 +23,7 @@ jobs:
     name: Build
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v2.3.4
       - name: Setup go
         uses: actions/setup-go@v2.1.3
         with:
@@ -35,6 +35,6 @@ jobs:
     name: Docker
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v2.3.4
       - name: Docker
         run: make docker

.github/workflows/quality.yaml

@@ -9,7 +9,7 @@ jobs:
     name: GolangCI
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v2.3.4
       - name: GolangCI
         uses: golangci/golangci-lint-action@v2.5.2
         with:

.github/workflows/release.yaml

@@ -10,7 +10,7 @@ jobs:
     name: Release
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v2.3.4
       - name: Setup go
         uses: actions/setup-go@v2.1.3
         with: