Update setup actions

Author: MilesCranmer

.github/workflows/main.yml

@@ -59,9 +59,9 @@ jobs:
       jl${{ matrix.julia-version }}
       ${{ matrix.os }} ${{ matrix.architecture }}
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v4
       - name: Setup python
-        uses: actions/setup-python@v1
+        uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
           architecture: ${{ matrix.architecture }}
@@ -99,9 +99,9 @@ jobs:
       fail-fast: false
     name: Check ${{ matrix.toxenv }}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Setup python
-        uses: actions/setup-python@v1
+        uses: actions/setup-python@v4
         with:
           python-version: '3.10'
       - run: python -m pip install --upgrade tox

.github/workflows/publish.yml

@@ -14,7 +14,7 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - name: Set up Python 3.9
-        uses: actions/setup-python@v1
+        uses: actions/setup-python@v4
         with:
           python-version: 3.9
       - name: Install setuptools and wheel
@@ -39,9 +39,9 @@ jobs:
     needs: publish-to-testpypi
     runs-on: ubuntu-20.04
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Set up Python 3.9
-        uses: actions/setup-python@v1
+        uses: actions/setup-python@v4
         with:
           python-version: 3.9
       - name: Set up Julia
@@ -60,7 +60,7 @@ jobs:
         package: ['julia==0.6.1']
     steps:
       - name: Set up Python 3.9
-        uses: actions/setup-python@v1
+        uses: actions/setup-python@v4
         with:
           python-version: 3.9
       - name: Download from TestPyPI

.github/workflows/testtests.yml

@@ -12,9 +12,9 @@ jobs:
   test__using_default_setup:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Setup python
-        uses: actions/setup-python@v1
+        uses: actions/setup-python@v4
       - run: python -m pip install --upgrade tox
       - run: python -m tox -- --no-julia -k test__using_default_setup
         env: