Release Firestore Emulator v1.19.1 (#6780)

* Update CHANGELOG.md

* Update downloadableEmulators.ts

* Update downloadableEmulators.ts

* update checksum value

* format CHANGELOG.md

* ran prettier on CHANGELOG.md

---------

Co-authored-by: Harsh Prajapati <hprajapati@google.com>

CHANGELOG.md

@@ -1 +1,6 @@
+- Release Cloud Firestore emulator v1.19.1:
+  - Adds support for Datastore Mode to the Firstore Emulator. Adds
+    `--database-mode` flag to `gcloud emulator firestore start` command. Note
+    that this is a preview feature and if you find any bugs, please file them
+    here: <https://github.com/firebase/firebase-tools/issues>.
 - Improve FAH onboarding flow to connect backends with SCMs (#6764).

src/emulator/downloadableEmulators.ts

@@ -33,9 +33,9 @@ const EMULATOR_UPDATE_DETAILS: { [s in DownloadableEmulators]: EmulatorUpdateDet
     expectedChecksum: "2fd771101c0e1f7898c04c9204f2ce63",
   },
   firestore: {
-    version: "1.18.2",
-    expectedSize: 63929486,
-    expectedChecksum: "7b066cd684baf9bcd4a56a258be344a5",
+    version: "1.19.1",
+    expectedSize: 67187672,
+    expectedChecksum: "859b1ac2a6040cccddd993c43586347c",
   },
   storage: {
     version: "1.1.3",