Simplify configuration of tests

Author: jonathanKingston

.github/workflows/ios-shared-web-tests.yml

@@ -58,8 +58,6 @@ jobs:
       run: |
           cd shared-web-tests
           npm run build
-          cd webdriver
-          cargo build
 
     - name: Build iOS
       run: |
@@ -69,7 +67,7 @@ jobs:
 
     - name: Add CA key
       run: |
-        xcrun simctl keychain booted add-root-cert ../shared-web-tests/web-platform-tests/build/tools/certs/cacert.pem
+        xcrun simctl keychain booted add-root-cert shared-web-tests/web-platform-tests/build/tools/certs/cacert.pem
 
     - name: Run tests
       run: |