bump setup-python action (#98)

Committed via https://github.com/asottile/all-repos

Author: maximlt

.github/workflows/build.yaml

@@ -36,7 +36,7 @@ jobs:
       - uses: actions/checkout@v3
       - name: Fetch unshallow
         run: git fetch --prune --tags --unshallow -f
-      - uses: actions/setup-python@v2
+      - uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
       - uses: conda-incubator/setup-miniconda@v2
@@ -77,7 +77,7 @@ jobs:
       - uses: actions/checkout@v3
       - name: Fetch unshallow
         run: git fetch --prune --tags --unshallow -f
-      - uses: actions/setup-python@v2
+      - uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
       - uses: conda-incubator/setup-miniconda@v2

.github/workflows/test.yaml

@@ -30,7 +30,7 @@ jobs:
       - uses: actions/checkout@v3
         with:
           fetch-depth: "100"
-      - uses: actions/setup-python@v2
+      - uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
       - uses: conda-incubator/setup-miniconda@v2