💚 [Fix] action's cache version to v4

Author: henrytsui000

.github/workflows/deploy.yaml

@@ -26,7 +26,7 @@ jobs:
         python-version: ${{ matrix.python-version }}
 
     - name: Cache pip dependencies
-      uses: actions/cache@v2
+      uses: actions/cache@v4
       with:
         path: ~/.cache/pip
         key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}-${{ matrix.python-version }}

.github/workflows/develop.yaml

@@ -20,7 +20,7 @@ jobs:
         python-version: '3.10'
 
     - name: Cache pip dependencies
-      uses: actions/cache@v2
+      uses: actions/cache@v4
       with:
         path: ~/.cache/pip
         key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}-3.10