Bump actions/checkout from 2.3.4 to 3.0.1 (#113)

Bumps [actions/checkout](https://github.com/actions/checkout) from 2.3.4 to 3.0.1.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v2.3.4...v3.0.1)

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

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

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

.github/workflows/audit.yml

@@ -13,7 +13,7 @@ jobs:
         uses:          styfle/cancel-workflow-action@0.9.1
 
       - name:          Checkout sources
-        uses:          actions/checkout@v2.3.4
+        uses:          actions/checkout@v3.0.1
         with:
           fetch-depth: 50
 

.github/workflows/check-style.yml

@@ -21,7 +21,7 @@ jobs:
         uses:          styfle/cancel-workflow-action@0.9.1
 
       - name:          Checkout sources & submodules
-        uses:          actions/checkout@v2.3.4
+        uses:          actions/checkout@v3.0.1
         with:
           fetch-depth: 5
           submodules:  recursive

.github/workflows/clippy.yml

@@ -21,7 +21,7 @@ jobs:
         uses:          styfle/cancel-workflow-action@0.9.1
 
       - name:          Checkout sources & submodules
-        uses:          actions/checkout@v2.3.4
+        uses:          actions/checkout@v3.0.1
         with:
           fetch-depth: 5
           submodules:  recursive

.github/workflows/rust-windows.yml

@@ -48,7 +48,7 @@ jobs:
           refreshenv
 
       - name:          Checkout sources & submodules
-        uses:          actions/checkout@v2.3.4
+        uses:          actions/checkout@v3.0.1
         with:
           fetch-depth: 5
           submodules:  recursive
@@ -134,7 +134,7 @@ jobs:
           refreshenv
 
       - name:          Checkout sources & submodules
-        uses:          actions/checkout@v2.3.4
+        uses:          actions/checkout@v3.0.1
         with:
           fetch-depth: 5
           submodules:  recursive
@@ -231,7 +231,7 @@ jobs:
           refreshenv
 
       - name:          Checkout sources & submodules
-        uses:          actions/checkout@v2.3.4
+        uses:          actions/checkout@v3.0.1
         with:
           fetch-depth: 5
           submodules:  recursive

.github/workflows/rust.yml

@@ -40,7 +40,7 @@ jobs:
           echo "CXX=clang++" >> "$GITHUB_ENV"
 
       - name:          Checkout sources & submodules
-        uses:          actions/checkout@v2.3.4
+        uses:          actions/checkout@v3.0.1
         with:
           fetch-depth: 5
           submodules:  recursive
@@ -110,7 +110,7 @@ jobs:
           echo "CXX=clang++" >> "$GITHUB_ENV"
 
       - name:          Checkout sources & submodules
-        uses:          actions/checkout@v2.3.4
+        uses:          actions/checkout@v3.0.1
         with:
           fetch-depth: 5
           submodules:  recursive
@@ -191,7 +191,7 @@ jobs:
           echo "CXX=clang++" >> "$GITHUB_ENV"
 
       - name:          Checkout sources & submodules
-        uses:          actions/checkout@v2.3.4
+        uses:          actions/checkout@v3.0.1
         with:
           fetch-depth: 5
           submodules:  recursive