chore: bump @google-cloud/firestore from 1.1.0 to 1.2.0 (#108)

Bumps [@google-cloud/firestore](https://github.com/googleapis/nodejs-firestore) from 1.1.0 to 1.2.0.
- [Release notes](https://github.com/googleapis/nodejs-firestore/releases)
- [Changelog](https://github.com/googleapis/nodejs-firestore/blob/master/CHANGELOG.md)
- [Commits](googleapis/nodejs-firestore@v1.1.0...v1.2.0)

Signed-off-by: dependabot[bot] <support@dependabot.com>

yarn.lock

@@ -512,18 +512,15 @@
     retry-request "^4.0.0"
 
 "@google-cloud/firestore@^1.0.1":
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/@google-cloud/firestore/-/firestore-1.1.0.tgz#fb1ee38b5e45392358de55c85bf767adf2e30028"
-  integrity sha512-TOgnsSuHtp4IyaXwFY+asHk3YHPjC7E/x2CRkFi6+h0td1cLv82KEh9rrjWTKPdVd7QupaQOGqiPkOf7c2nc/g==
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/@google-cloud/firestore/-/firestore-1.2.0.tgz#ac81f84f7e55c5a25956011ebab628e1bbf4b2b0"
+  integrity sha512-Xku0KpZ/N+vbqX7rETlJVHV9YannCYja2v8vVvqe4sR9Rz0WkHqyDCZcjaXmcIC4DDKN+vzrb3IinBKDsniFag==
   dependencies:
-    "@google-cloud/projectify" "^0.3.0"
     bun "^0.0.12"
     deep-equal "^1.0.1"
-    extend "^3.0.1"
     functional-red-black-tree "^1.0.1"
     google-gax "^0.25.0"
     lodash.merge "^4.6.1"
-    protobufjs "^6.8.6"
     through2 "^3.0.0"
 
 "@google-cloud/paginator@^0.2.0":
@@ -536,7 +533,7 @@
     split-array-stream "^2.0.0"
     stream-events "^1.0.4"
 
-"@google-cloud/projectify@^0.3.0", "@google-cloud/projectify@^0.3.2":
+"@google-cloud/projectify@^0.3.2":
   version "0.3.2"
   resolved "https://registry.yarnpkg.com/@google-cloud/projectify/-/projectify-0.3.2.tgz#ed54c98cae646dc03a742eac288184a13d33a4c2"
   integrity sha512-t1bs5gE105IpgikX7zPCJZzVyXM5xZ/1kJomUPim2E2pNp4OUUFNyvKm/T2aM6GBP2F30o8abCD+/wbOhHWYYA==