Merge 0c88dcf into fde5adf

Author: hsubox76

.github/workflows/test-changed-firestore.yml

@@ -34,7 +34,7 @@ jobs:
 
   test-firefox:
     name: Test Firestore on Firefox If Changed
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
 
     steps:
       - name: install Firefox stable

packages/firestore/src/index/directional_index_byte_encoder.ts

@@ -17,6 +17,8 @@
 
 import { ByteString } from '../util/byte_string';
 
+// Trigger Firestore CI tests
+
 /** An index value encoder.  */
 export interface DirectionalIndexByteEncoder {
   // Note: This code is copied from the backend. Code that is not used by