add python version to cache key

Author: Kostiiii

.github/workflows/develop.yml

@@ -31,7 +31,7 @@ jobs:
         id: cache
         with:
           path: ~/.cache/pip
-          key: tests-${{ runner.os }}-pip-${{ hashFiles('requirements/main.txt', 'requirements/dev.txt') }}
+          key: tests-${{ runner.os }}-${{ matrix.python-version }}-pip-${{ hashFiles('requirements/main.txt', 'requirements/dev.txt') }}
 
       - name: "5. Tests"
         run: |
@@ -62,7 +62,7 @@ jobs:
         id: cache
         with:
           path: ~/.cache/pip
-          key: release-${{ runner.os }}-pip-${{ hashFiles('requirements/main.txt', 'requirements/release.txt') }}
+          key: release-${{ runner.os }}-${{ matrix.python-version }}-pip-${{ hashFiles('requirements/main.txt', 'requirements/release.txt') }}
 
       - name: "6. Build docs"
         run: |

.github/workflows/merge.yml

@@ -34,7 +34,7 @@ jobs:
         id: cache
         with:
           path: ~/.cache/pip
-          key: tests-${{ runner.os }}-pip-${{ hashFiles('requirements/main.txt', 'requirements/dev.txt') }}
+          key: tests-${{ runner.os }}-${{ matrix.python-version }}-pip-${{ hashFiles('requirements/main.txt', 'requirements/dev.txt') }}
 
       - name: "5. Tests"
         run: |
@@ -83,7 +83,7 @@ jobs:
         id: cache
         with:
           path: ~/.cache/pip
-          key: release-${{ runner.os }}-pip-${{ hashFiles('requirements/main.txt', 'requirements/release.txt') }}
+          key: release-${{ runner.os }}-${{ matrix.python-version }}-pip-${{ hashFiles('requirements/main.txt', 'requirements/release.txt') }}
 
       - name: "6. Build docs"
         run: |