[ci] Attempt cd'ing in a step

.github/actions/prepare-rtl/action.yml

@@ -21,6 +21,10 @@ inputs:
 runs:
   using: "composite"
   steps:
+    - name: cd into remote
+      run: |
+        cd "${{ env.REMOTE_WORK_DIR }}"
+
     - uses: actions/cache@v3
       id: rtl-build-id
       with:

.github/workflows/chipyard-run-tests-gpu.yml

@@ -161,7 +161,6 @@ jobs:
       - name: Prepare GPU binaries
         uses: ./.github/actions/prepare-gpu
       - name: Build RTL on self-hosted
-        working-directory: ${{ env.REMOTE_WORK_DIR }}
         uses: ./.github/actions/prepare-rtl
         with:
           group-key: "group-gpu"