⬆️ Bump actions/checkout from 2 to 3 (#252)

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

Author: dependabot[bot]

.github/workflows/benchmark.yml

@@ -9,7 +9,7 @@ jobs:
 
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
 
     - name: Set up Python 3.8
       uses: actions/setup-python@v4

.github/workflows/tests.yml

@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
     - name: Set up Python 3.8
       uses: actions/setup-python@v4
       with:
@@ -34,7 +34,7 @@ jobs:
         python-version: ['pypy-3.7', '3.7', '3.8', '3.9', '3.10', '3.11']
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v4
       with:
@@ -63,7 +63,7 @@ jobs:
       matrix:
         python-version: ['3.8']
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v4
       with:
@@ -83,7 +83,7 @@ jobs:
 
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
 
     - name: Set up Python 3.8
       uses: actions/setup-python@v4
@@ -113,7 +113,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout source
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
     - name: Set up Python 3.8
       uses: actions/setup-python@v4
       with: