chore: cache pip in setup-python (#3436)

installing dependencies takes about 1min per job. pip caching should
speed it up. note that in theory, this caches "correctly" in that it
doesn't cache the dependency graph or install directories, just the
wheels. so if upstream packages are updated, they should get
reinstalled.

.github/workflows/build.yml

@@ -34,6 +34,7 @@ jobs:
         uses: actions/setup-python@v4
         with:
           python-version: "3.11"
+          cache: "pip"
 
       - name: Generate Binary
         run: >-
@@ -61,6 +62,7 @@ jobs:
         uses: actions/setup-python@v4
         with:
           python-version: "3.11"
+          cache: "pip"
 
       - name: Generate Binary
         run: >-

.github/workflows/era-tester.yml

@@ -38,6 +38,7 @@ jobs:
       uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python-version[0] }}
+        cache: "pip"
 
     - name: Get cache
       id: get-cache

.github/workflows/publish.yml

@@ -18,7 +18,7 @@ jobs:
     - name: Python
       uses: actions/setup-python@v4
       with:
-        python-version: '3.x'
+        python-version: "3.11"
 
     - name: Install dependencies
       run: |

.github/workflows/test.yml

@@ -21,6 +21,7 @@ jobs:
       uses: actions/setup-python@v4
       with:
         python-version: "3.11"
+        cache: "pip"
 
     - name: Install Dependencies
       run: pip install .[lint]
@@ -46,6 +47,7 @@ jobs:
         uses: actions/setup-python@v4
         with:
           python-version: "3.11"
+          cache: "pip"
 
       - name: Install Tox
         run: pip install tox
@@ -63,6 +65,7 @@ jobs:
       uses: actions/setup-python@v4
       with:
         python-version: "3.11"
+        cache: "pip"
 
     - name: Install Tox
       run: pip install tox
@@ -88,6 +91,7 @@ jobs:
       uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python-version[0] }}
+        cache: "pip"
 
     - name: Install Tox
       run: pip install tox
@@ -130,6 +134,7 @@ jobs:
       uses: actions/setup-python@v4
       with:
         python-version: "3.11"
+        cache: "pip"
 
     - name: Install Tox
       run: pip install tox
@@ -171,6 +176,7 @@ jobs:
       uses: actions/setup-python@v4
       with:
         python-version: "3.11"
+        cache: "pip"
 
     - name: Install Tox
       run: pip install tox