Bump actions/setup-python from v2.1.2 to v2.1.3

Bumps [actions/setup-python](https://github.com/actions/setup-python) from v2.1.2 to v2.1.3.
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](https://github.com/actions/setup-python/compare/v2.1.2...c181ffa198a1248f902bc2f7965d2f9a36c2d7f6)

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

.github/workflows/pre-commit-autoupdate.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
-    - uses: actions/setup-python@v2.1.2
+    - uses: actions/setup-python@v2.1.3
       with:
         python-version: 3.8
 

.github/workflows/update-changelog.yml

@@ -15,7 +15,7 @@ jobs:
     - uses: actions/checkout@v2
 
     - name: Set up Python
-      uses: actions/setup-python@v2.1.2
+      uses: actions/setup-python@v2.1.3
       with:
         python-version: "3.8"
     - name: Install dependencies

.github/workflows/update-contributors.yml

@@ -13,7 +13,7 @@ jobs:
     - uses: actions/checkout@v2
 
     - name: Set up Python
-      uses: actions/setup-python@v2.1.2
+      uses: actions/setup-python@v2.1.3
       with:
         python-version: "3.8"
     - name: Install dependencies