Bump actions/checkout from 2 to 2.3.4 (#2002)

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/builder.yml

@@ -20,7 +20,7 @@ jobs:
       changed: ${{ steps.changed_addons.outputs.changed }}
     steps:
       - name: Check out the repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.4
 
       - name: Get changed files
         id: changed_files
@@ -72,7 +72,7 @@ jobs:
 
     steps:
       - name: Check out repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.4
 
       - name: Get information
         id: info

.github/workflows/lint.yml

@@ -16,7 +16,7 @@ jobs:
     name: hadolint
     steps:
       - name: Check out the repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.4
 
       - name: Run linter
         id: changed_files
@@ -34,7 +34,7 @@ jobs:
     name: JQ
     steps:
       - name: Check out the repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.4
 
       - name: Run linter
         run: |
@@ -46,7 +46,7 @@ jobs:
     name: ShellCheck
     steps:
       - name: Check out the repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.4
 
       - name: Run linter
         uses: ludeeus/action-shellcheck@1.1.0