Bump lodash from 4.17.19 to 4.17.20 in /app

Bumps [lodash](https://github.com/lodash/lodash) from 4.17.19 to 4.17.20.
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](https://github.com/lodash/lodash/compare/4.17.19...4.17.20)

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

app/package.json

@@ -66,7 +66,7 @@
         "jquery": "^3.5.1",
         "jquery-ui-dist": "^1.12.1",
         "json5": "^2.1.3",
-        "lodash": "^4.17.19",
+        "lodash": "^4.17.20",
         "materialize-css": "git://github.com/cutls/materialize#v1-dev",
         "sumchecker": "^3.0.1",
         "sweetalert2": "^9.17.0",

app/yarn.lock

@@ -2165,10 +2165,10 @@ lodash.assign@^4.2.0:
   resolved "https://registry.yarnpkg.com/lodash.assign/-/lodash.assign-4.2.0.tgz#0d99f3ccd7a6d261d19bdaeb9245005d285808e7"
   integrity sha1-DZnzzNem0mHRm9rrkkUAXShYCOc=
 
-lodash@^4.17.10, lodash@^4.17.14, lodash@^4.17.19:
-  version "4.17.19"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.19.tgz#e48ddedbe30b3321783c5b4301fbd353bc1e4a4b"
-  integrity sha512-JNvd8XER9GQX0v2qJgsaN/mzFCNA5BRe/j8JN9d+tWyGLSodKQHKFicdwNYzWwI3wjRnaKPsGj1XkBjx/F96DQ==
+lodash@^4.17.10, lodash@^4.17.14, lodash@^4.17.19, lodash@^4.17.20:
+  version "4.17.20"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.20.tgz#b44a9b6297bcb698f1c51a3545a2b3b368d59c52"
+  integrity sha512-PlhdFcillOINfeV7Ni6oF1TAEayyZBoZ8bcshTHqOYJYlrqzRK5hagpagky5o4HfCzzd1TRkXPMFq6cKk9rGmA==
 
 log-symbols@^2.2.0:
   version "2.2.0"