actions/setup-python@v4 requires a Python version

.github/workflows/diff_shades.yml

@@ -21,6 +21,8 @@ jobs:
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-python@v4
+        with:
+          python-version: "*"
 
       - name: Install diff-shades and support dependencies
         run: |
@@ -55,6 +57,8 @@ jobs:
           fetch-depth: 0
 
       - uses: actions/setup-python@v4
+        with:
+          python-version: "*"
 
       - name: Install diff-shades and support dependencies
         run: |

.github/workflows/diff_shades_comment.yml

@@ -14,6 +14,8 @@ jobs:
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-python@v4
+        with:
+          python-version: "*"
 
       - name: Install support dependencies
         run: |

.github/workflows/doc.yml

@@ -25,6 +25,8 @@ jobs:
 
       - name: Set up latest Python
         uses: actions/setup-python@v4
+        with:
+          python-version: "*"
 
       - name: Install dependencies
         run: |

.github/workflows/lint.yml

@@ -18,6 +18,8 @@ jobs:
 
       - name: Set up Python
         uses: actions/setup-python@v4
+        with:
+          python-version: "*"
 
       - name: Install dependencies
         run: |

.github/workflows/pypi_upload.yml

@@ -17,6 +17,8 @@ jobs:
 
       - name: Set up Python
         uses: actions/setup-python@v4
+        with:
+          python-version: "*"
 
       - name: Install latest pip, build, twine
         run: |

.github/workflows/uvloop_test.yml

@@ -34,6 +34,8 @@ jobs:
 
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v4
+        with:
+          python-version: "*"
 
       - name: Install latest pip
         run: |