endtoend: Run go test in CI (#1134)

* endtoend: Run `go test` in CI
* Re-order some steps

Author: kyleconroy

.github/workflows/ci.yml

@@ -36,10 +36,7 @@ jobs:
       with:
         go-version: '1.17'
 
-    - run: go build ./...
-      working-directory: internal/endtoend/testdata
-
-    - name: Test sqlc
+    - name: test ./...
       run: go test --tags=examples ./...
       env:
         PG_USER: postgres
@@ -52,3 +49,10 @@ jobs:
         MYSQL_PORT: ${{ job.services.mysql.ports['3306'] }}
         MYSQL_ROOT_PASSWORD: mysecretpassword
 
+    - name: build internal/endtoend
+      run: go build ./...
+      working-directory: internal/endtoend/testdata
+
+    - name: test internal/endtoend
+      run: go test ./...
+      working-directory: internal/endtoend/testdata