Bump lodash from 4.17.5 to 4.17.15 in /AWS/cloud-formation

Bumps [lodash](https://github.com/lodash/lodash) from 4.17.5 to 4.17.15.
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](lodash/lodash@4.17.5...4.17.15)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

AWS/cloud-formation/yarn.lock

@@ -1309,7 +1309,7 @@ esutils@^2.0.2:
 
 event-stream@~3.3.0:
   version "3.3.4"
-  resolved "http://registry.npmjs.org/event-stream/-/event-stream-3.3.4.tgz#4ab4c9a0f5a54db9338b4c34d86bfce8f4b35571"
+  resolved "https://registry.npmjs.org/event-stream/-/event-stream-3.3.4.tgz#4ab4c9a0f5a54db9338b4c34d86bfce8f4b35571"
   dependencies:
     duplexer "~0.1.1"
     from "~0"
@@ -2083,8 +2083,8 @@ locate-path@^2.0.0:
     path-exists "^3.0.0"
 
 lodash@^4.17.4, lodash@^4.2.0, lodash@^4.3.0:
-  version "4.17.5"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.5.tgz#99a92d65c0272debe8c96b6057bc8fbfa3bed511"
+  version "4.17.15"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.15.tgz#b447f6670a0455bbfeedd11392eff330ea097548"
 
 loose-envify@^1.0.0:
   version "1.3.1"