Bump actions/checkout from 2 to 2.3.4 (#301)

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/codeql-analysis.yml

@@ -35,7 +35,7 @@ jobs:
         language: [ 'go' ]
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v2
+      uses: actions/checkout@v2.3.4
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL

.github/workflows/main.yml

@@ -26,7 +26,7 @@ jobs:
     runs-on: ubuntu-20.04
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v2.3.4
       - name: Extract version of Go to use
         run: echo "GOVERSION=$(cat Dockerfile|grep golang | awk ' { print $2 } ' | sed -r 's/^.*://g'| uniq)" >> $GITHUB_ENV
       - uses: actions/setup-go@v2
@@ -50,7 +50,7 @@ jobs:
     steps:
       - name: download minisign
         run: sudo add-apt-repository ppa:dysfunctionalprogramming/minisign && sudo apt-get update && sudo apt-get install minisign
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v2.3.4
       - name: Docker Build
         run: docker-compose build
       - uses: actions/setup-go@v2

.github/workflows/verify.yml

@@ -22,7 +22,7 @@ jobs:
     name: license boilerplate check
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v2.3.4
       - uses: actions/setup-go@v2
         with:
           go-version: '1.16'
@@ -38,7 +38,7 @@ jobs:
     name: lint
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v2.3.4
       - name: deps
         run: sudo apt-get update && sudo apt-get install -yq libpcsclite-dev
       - name: golangci-lint