Explicitly start the host

Author: mdboom

.github/workflows/build-wheel.yml

@@ -52,6 +52,11 @@ jobs:
       - name: Enable sccache
         uses: mozilla-actions/sccache-action@7d986dd989559c6ecdb630a3fd2557667be217ad  # 0.0.9
 
+      - name: Start sccache
+        # Since we actually /use/ this from a container, we need to start the server
+        # in the host first.
+        run: sccache --start-server
+
       - name: Setup proxy cache
         uses: nv-gha-runners/setup-proxy-cache@main
         continue-on-error: true