Bring back firebase tests to prod (#144703)

Context: flutter/flutter#144183

Author: keyonghan

.ci.yaml

@@ -501,7 +501,6 @@ targets:
   - name: Linux firebase_abstract_method_smoke_test
     presubmit: false
     recipe: firebaselab/firebaselab
-    bringup: true # https://github.com/flutter/flutter/issues/144183
     timeout: 60
     properties:
       dependencies: >-
@@ -534,7 +533,6 @@ targets:
 
   - name: Linux firebase_android_embedding_v2_smoke_test
     recipe: firebaselab/firebaselab
-    bringup: true # https://github.com/flutter/flutter/issues/144183
     timeout: 60
     properties:
       dependencies: >-
@@ -566,7 +564,6 @@ targets:
 
   - name: Linux firebase_release_smoke_test
     recipe: firebaselab/firebaselab
-    bringup: true # https://github.com/flutter/flutter/issues/144183
     timeout: 60
     properties:
       dependencies: >-