Remove cache, it is breaking the build?

Author: wouterj

.github/workflows/ci.yaml

@@ -29,13 +29,13 @@ jobs:
             -   name: "Install Sphinx dependencies"
                 run: sudo apt-get install python-dev build-essential
 
-            -   name: "Cache pip"
-                uses: actions/cache@v2
-                with:
-                    path: ~/.cache/pip
-                    key: ${{ runner.os }}-pip-${{ hashFiles('_build/.requirements.txt') }}
-                    restore-keys: |
-                        ${{ runner.os }}-pip-
+#            -   name: "Cache pip"
+#                uses: actions/cache@v2
+#                with:
+#                    path: ~/.cache/pip
+#                    key: ${{ runner.os }}-pip-${{ hashFiles('_build/.requirements.txt') }}
+#                    restore-keys: |
+#                        ${{ runner.os }}-pip-
 
             -   name: "Install Sphinx + requirements via pip"
                 run: pip install -r _build/.requirements.txt