GH: make sure cached dirs exist

.github/workflows/pytest.yml

@@ -28,6 +28,12 @@ jobs:
       - uses: actions/setup-go@v5
         with:
           go-version: '>=1.17.0'
+      - name: Ensure cached directory exist before calling cache-related actions
+        shell: bash
+        run: |
+          mkdir -p $HOME/.serena/language_servers/static
+          mkdir -p $HOME/.cache/go-build
+          mkdir -p $HOME/go/bin
       # Add Go bin directory to PATH for this workflow
       # GITHUB_PATH is a special file that GitHub Actions uses to modify PATH
       # Writing to this file adds the directory to the PATH for subsequent steps
@@ -36,8 +42,8 @@ jobs:
         uses: actions/cache@v3
         with:
           path: |
-            ${{ env.HOME }}/go/bin
-            ${{ env.HOME }}/.cache/go-build
+            ~/go/bin
+            ~/.cache/go-build
           key: go-binaries-${{ runner.os }}-gopls-latest
       - name: Install gopls
         if: steps.cache-go-binaries.outputs.cache-hit != 'true'
@@ -49,7 +55,6 @@ jobs:
         with:
           elixir-version: '1.18.4'
           otp-version: '26.1'
-
       - name: Prepare java
         uses: actions/setup-java@v3
         with:
@@ -77,7 +82,7 @@ jobs:
         id: cache-language-servers
         uses: actions/cache@v3
         with:
-          path: ${{ env.HOME }}/.serena/language_servers/static
+          path: ~/.serena/language_servers/static
           key: language-servers-${{ runner.os }}-v1
           restore-keys: |
             language-servers-${{ runner.os }}-