[CI] add pip caching to setup-python action

Author: egpbos

.github/workflows/build.yml

@@ -24,6 +24,8 @@ jobs:
         uses: actions/setup-python@v2
         with:
           python-version: ${{ matrix.python-version }}
+          cache: 'pip'
+          cache-dependency-path: setup.cfg
       - name: Python info
         shell: bash -l {0}
         run: |

.github/workflows/linting.yml

@@ -21,6 +21,8 @@ jobs:
         uses: actions/setup-python@v2
         with:
           python-version: 3.9
+          cache: 'pip'
+          cache-dependency-path: setup.cfg
       - name: Python info
         shell: bash -l {0}
         run: |

.github/workflows/notebooks.yml

@@ -23,6 +23,8 @@ jobs:
         uses: actions/setup-python@v2
         with:
           python-version: 3.9
+          cache: 'pip'
+          cache-dependency-path: setup.cfg
       - name: Python info
         shell: bash -l {0}
         run: |

.github/workflows/release.yml

@@ -17,6 +17,8 @@ jobs:
         uses: actions/setup-python@v2
         with:
           python-version: 3.9
+          cache: 'pip'
+          cache-dependency-path: setup.cfg
       - name: Python info
         shell: bash -l {0}
         run: |
@@ -45,6 +47,8 @@ jobs:
         uses: actions/setup-python@v2
         with:
           python-version: 3.9
+          cache: 'pip'
+          cache-dependency-path: setup.cfg
       - name: Python info
         shell: bash -l {0}
         run: |

.github/workflows/sonarcloud.yml

@@ -22,6 +22,8 @@ jobs:
         uses: actions/setup-python@v2
         with:
           python-version: 3.9
+          cache: 'pip'
+          cache-dependency-path: setup.cfg
       - name: Python info
         shell: bash -l {0}
         run: |