Bump actions/checkout from 1 to 2.3.5

Bumps [actions/checkout](https://github.com/actions/checkout) from 1 to 2.3.5.
- [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/v1...v2.3.5)

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

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

.github/workflows/build.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: windows-2019
     steps:
       - name: Checkout
-        uses: actions/checkout@v1
+        uses: actions/checkout@v2.3.5
       - name: Install Python
         uses: actions/setup-python@v1
         with:
@@ -32,7 +32,7 @@ jobs:
     runs-on: windows-2019
     steps:
       - name: Checkout
-        uses: actions/checkout@v1
+        uses: actions/checkout@v2.3.5
       - name: Install Python
         uses: actions/setup-python@v1
         with:
@@ -56,7 +56,7 @@ jobs:
     runs-on: ubuntu-18.04
     steps:
      - name: Checkout
-       uses: actions/checkout@v1
+       uses: actions/checkout@v2.3.5
      - name: Install Python
        uses: actions/setup-python@v1
        with:
@@ -86,7 +86,7 @@ jobs:
     runs-on: macOS-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v1
+        uses: actions/checkout@v2.3.5
       - name: Install Python
         uses: actions/setup-python@v1
         with:
@@ -113,7 +113,7 @@ jobs:
     runs-on: ubuntu-18.04
     steps:
      - name: Checkout
-       uses: actions/checkout@v1
+       uses: actions/checkout@v2.3.5
      - name: Install Python
        uses: actions/setup-python@v1
        with:

.github/workflows/release-assets.yml

@@ -8,7 +8,7 @@ jobs:
     runs-on: windows-2019
     steps:
       - name: Checkout
-        uses: actions/checkout@v1
+        uses: actions/checkout@v2.3.5
       - name: Install Python
         uses: actions/setup-python@v1
         with:
@@ -33,7 +33,7 @@ jobs:
     runs-on: windows-2019
     steps:
       - name: Checkout
-        uses: actions/checkout@v1
+        uses: actions/checkout@v2.3.5
       - name: Install Python
         uses: actions/setup-python@v1
         with:
@@ -60,7 +60,7 @@ jobs:
     runs-on: ubuntu-18.04
     steps:
       - name: Checkout
-        uses: actions/checkout@v1
+        uses: actions/checkout@v2.3.5
       - name: Install Python
         uses: actions/setup-python@v1
         with:
@@ -93,7 +93,7 @@ jobs:
     runs-on: macOS-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v1
+        uses: actions/checkout@v2.3.5
       - name: Install Python
         uses: actions/setup-python@v1
         with: