turn on github actions caching of pip environments

.github/workflows/isort.yml

@@ -11,7 +11,8 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5
         with:
-          python-version: 3.x
+          python-version: '3.x'
+          cache: 'pip'
       - run: pip install 'isort>=5.0.1'
       - uses: akaihola/lint-action@master
         with:

.github/workflows/mypy.yml

@@ -11,9 +11,11 @@ jobs:
       - uses: actions/checkout@v4
       - name: Install uv
         uses: astral-sh/setup-uv@v3
+        with:
+          enable-cache: true
       - uses: actions/setup-python@v5
         with:
-          python-version: 3.x
+          python-version: '3.x'
       - run: |
           uv pip install --system -U \
             black \

.github/workflows/pylint.yml

@@ -11,9 +11,11 @@ jobs:
       - uses: actions/checkout@v4
       - name: Install uv
         uses: astral-sh/setup-uv@v3
+        with:
+          enable-cache: true
       - uses: actions/setup-python@v5
         with:
-          python-version: 3.x
+          python-version: '3.x'
       - name: Install dependencies for running Pylint
         run: |
           uv pip install --system -U \

.github/workflows/python-package.yml

@@ -22,6 +22,8 @@ jobs:
       - uses: actions/checkout@v4
       - name: Install uv
         uses: astral-sh/setup-uv@v3
+        with:
+          enable-cache: true
       - uses: actions/setup-python@v5
       - name: Build wheel distribution
         run: uv build --wheel

.github/workflows/safety.yml

@@ -11,6 +11,8 @@ jobs:
       - uses: actions/checkout@v4
       - name: Install uv
         uses: astral-sh/setup-uv@v3
+        with:
+          enable-cache: true
       - uses: actions/setup-python@v5
       - run: uvx --from pip-tools pip-compile setup.cfg
       - name: Check dependencies for known security vulnerabilities using Safety

.github/workflows/test-future.yml

@@ -19,6 +19,7 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: '3.x'
+          cache: 'pip'
       - name: Install dependencies
         run: |
           # strict dependency resolution added in pip 20.3

CHANGES.rst

@@ -5,6 +5,7 @@ These features will be included in the next release:
 
 Added
 -----
+- CI workflow, enable caching of packages
 - Dependabot configuration for automatically opening prs for package version 
   upgrades
 - New exit codes 2 for file not found, 3 for invalid command line arguments, 4 for