Bump actions/checkout from 2.4.0 to 3.1.0

Bumps [actions/checkout](https://github.com/actions/checkout) from 2.4.0 to 3.1.0.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v2.4.0...v3.1.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/dependabot_automerge.yml

@@ -7,7 +7,7 @@ jobs:
   auto-merge:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2.4.0
+      - uses: actions/checkout@v3.1.0
       - uses: ahmadnassri/[email protected]
         with:
           target: minor

.github/workflows/docs.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-20.04
     timeout-minutes: 30
     steps:
-      - uses: actions/checkout@v2.4.0
+      - uses: actions/checkout@v3.1.0
       - name: Copy config templates
         working-directory: "config"
         run: |

.github/workflows/e2e.yml

@@ -39,7 +39,7 @@ jobs:
       - name: Install system dependencies
         run: |
           sudo apt-get install -y imagemagick
-      - uses: actions/checkout@v2.4.0
+      - uses: actions/checkout@v3.1.0
       - name: Copy config templates
         working-directory: "config"
         run: |

.github/workflows/elixir_credo.yml

@@ -18,7 +18,7 @@ jobs:
         if: "github.ref != 'refs/heads/master'"
         env:
           GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
-      - uses: actions/checkout@v2.4.0
+      - uses: actions/checkout@v3.1.0
       - name: Copy config templates
         working-directory: "config"
         run: |

.github/workflows/elixir_formatting.yml

@@ -18,7 +18,7 @@ jobs:
         if: "github.ref != 'refs/heads/master'"
         env:
           GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
-      - uses: actions/checkout@v2.4.0
+      - uses: actions/checkout@v3.1.0
       - name: Copy config templates
         working-directory: "config"
         run: |

.github/workflows/elixir_tests.yml

@@ -39,7 +39,7 @@ jobs:
       - name: Install system dependencies
         run: |
           sudo apt-get install -y imagemagick
-      - uses: actions/checkout@v2.4.0
+      - uses: actions/checkout@v3.1.0
       - name: Copy config templates
         working-directory: "config"
         run: |

.github/workflows/javascript_compile.yml

@@ -18,7 +18,7 @@ jobs:
         if: "github.ref != 'refs/heads/master'"
         env:
           GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
-      - uses: actions/checkout@v2.4.0
+      - uses: actions/checkout@v3.1.0
       - name: Copy config templates
         working-directory: "config"
         run: |

.github/workflows/javascript_lint.yml

@@ -18,7 +18,7 @@ jobs:
         if: "github.ref != 'refs/heads/master'"
         env:
           GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
-      - uses: actions/checkout@v2.4.0
+      - uses: actions/checkout@v3.1.0
       - name: Copy config templates
         working-directory: "config"
         run: |