Don't skip the Porch e2e test in the GA workflow (#3604)

Author: mortent

.github/workflows/porch-e2e.yml

@@ -95,7 +95,7 @@ jobs:
             fi
           done
       - name: e2e test
-        run: go test -v .
+        run: E2E=1 go test -v .
         working-directory: ./porch/test/e2e
       - name: Porch CLI e2e test
         run: make test-porch