Bump lodash from 4.17.20 to 4.17.21 in /cloud_functions/functions

Bumps [lodash](https://github.com/lodash/lodash) from 4.17.20 to 4.17.21.
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](https://github.com/lodash/lodash/compare/4.17.20...4.17.21)

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

cloud_functions/functions/package.json

@@ -28,7 +28,7 @@
     "imagemin": "^7.0.1",
     "imagemin-mozjpeg": "^9.0.0",
     "imagemin-pngquant": "^9.0.0",
-    "lodash": "^4.17.19",
+    "lodash": "^4.17.21",
     "sharp": "^0.25.4"
   },
   "devDependencies": {

cloud_functions/functions/yarn.lock

@@ -3948,10 +3948,10 @@ lodash.values@^2.4.1:
   dependencies:
     lodash.keys "~2.4.1"
 
-lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.14, lodash@^4.17.19, lodash@^4.17.5:
-  version "4.17.20"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.20.tgz#b44a9b6297bcb698f1c51a3545a2b3b368d59c52"
-  integrity sha512-PlhdFcillOINfeV7Ni6oF1TAEayyZBoZ8bcshTHqOYJYlrqzRK5hagpagky5o4HfCzzd1TRkXPMFq6cKk9rGmA==
+lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.14, lodash@^4.17.19, lodash@^4.17.21, lodash@^4.17.5:
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
+  integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==
 
 log-symbols@^2.2.0:
   version "2.2.0"
@@ -4396,7 +4396,6 @@ node-forge@^0.10.0:
   resolved "https://registry.yarnpkg.com/node-forge/-/node-forge-0.10.0.tgz#32dea2afb3e9926f02ee5ce8794902691a676bf3"
   integrity sha512-PPmu8eEeG9saEUvI97fm4OYxXVB6bFvyNTyiUOBichBpFG8A1Ljw3bY62+5oOjDEMHRnd0Y7HQ+x7uzxOzC6JA==
 
-
 node-gyp@^7.1.2:
   version "7.1.2"
   resolved "https://registry.yarnpkg.com/node-gyp/-/node-gyp-7.1.2.tgz#21a810aebb187120251c3bcec979af1587b188ae"