Removed Build step from testing workflow

It seems that as of Swift 5.4, building tests on a release build causes issues. See #9

Author: dimitribouniol

.github/workflows/test.yml

@@ -12,9 +12,10 @@ jobs:
     steps:
     - name: Checkout Source
       uses: actions/checkout@v2
-    - name: Build
-      run: |
-        swift build --build-tests --enable-index-store --configuration release -Xswiftc -warnings-as-errors -Xcc -Werror
+#    - name: Build
+#      run: |
+#        swift build --build-tests --enable-index-store --configuration release -Xswiftc -warnings-as-errors -Xcc -Werror
     - name: Run Tests
       run: |
-        swift test --skip-build --enable-index-store --configuration release
+        swift test --enable-index-store --configuration release -Xswiftc -warnings-as-errors -Xcc -Werror
+#        swift test --skip-build --enable-index-store --configuration release