Bump actions/checkout from 2 to 3

Bumps [actions/checkout](https://github.com/actions/checkout) from 2 to 3.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v2...v3)

---
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/build-marlin.yml

@@ -18,7 +18,7 @@ jobs:
 
     steps:
     - name: Check out Marlin
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
       with:
         repository: MarlinFirmware/Marlin
         ref: 2.0.9.3
@@ -28,7 +28,7 @@ jobs:
         submodules: 'true'
 
     - name: Check out Marlin-Configurations
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
       with:
         repository: MarlinFirmware/Configurations
         ref: release-2.0.9.3

.github/workflows/export-bom.yaml

@@ -29,7 +29,7 @@ jobs:
         sudo apt install python3
 
     - name: Download repository
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
 
     - name: Fetch FreeCAD
       uses: dsaltares/fetch-gh-release-asset@master

.github/workflows/export-ecad.yaml

@@ -17,7 +17,7 @@ jobs:
         git lfs install
 
     - name: Checkout Repository
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
       with:
         lfs: true
 
@@ -117,7 +117,7 @@ jobs:
         echo 'repo: ${{github.repository}}'
 
     - name: Checkout Repository
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
       with:
         lfs: true
 

.github/workflows/export-mcad.yaml

@@ -12,7 +12,7 @@ jobs:
 
     steps:
     - name: Download repository
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
 
     - name: Install FreeCAD Python library
       run:  |

.github/workflows/publish-docs.yaml

@@ -47,7 +47,7 @@ jobs:
     needs: output_details
     if: github.event_name == 'push' || github.event_name == 'release' || (github.event_name == 'workflow_run' && github.event.workflow_run.conclusion == 'success') || github.event_name == 'workflow_dispatch'
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
           lfs: false
 
@@ -76,7 +76,7 @@ jobs:
             #      run:  sudo apt install python3 libcanberra-gtk-module libcanberra-gtk3-module libglu1-mesa libgl1 libpangox-1.0-0 libpangoxft-1.0-0
             #
             #    - name: Download repository
-            #      uses: actions/checkout@v2
+            #      uses: actions/checkout@v3
             #
             #    - name: Fetch FreeCAD
             #      uses: dsaltares/fetch-gh-release-asset@master
@@ -131,7 +131,7 @@ jobs:
     runs-on: ubuntu-latest
     if: github.event_name == 'push' || github.event_name == 'release' || (github.event_name == 'workflow_run' && github.event.workflow_run.conclusion == 'success') || github.event_name == 'workflow_dispatch'
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
           submodules: recursive  # Fetch the Docsy theme
           fetch-depth: 0         # Fetch all history for .GitInfo and .Lastmod
@@ -246,7 +246,7 @@ jobs:
     needs: build_page
     steps:
       - name: Checkout gh-pages branch
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           submodules: recursive
           fetch-depth: 0