build(deps): bump rollup from 1.18.0 to 1.20.3

Bumps [rollup](https://github.com/rollup/rollup) from 1.18.0 to 1.20.3.
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](rollup/rollup@v1.18.0...v1.20.3)

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

Author: dependabot-preview[bot]

yarn.lock

@@ -1060,10 +1060,10 @@
   resolved "https://registry.yarnpkg.com/@types/minimatch/-/minimatch-3.0.3.tgz#3dca0e3f33b200fc7d1139c0cd96c1268cadfd9d"
   integrity sha512-tHq6qdbT9U1IRSGf14CL0pUlULksvY9OZ+5eEgl1N7t+OA3tGvNpxJCzuKQlsNgCVwbAs670L1vcVQi8j9HjnA==
 
-"@types/node@*", "@types/node@^12.6.3":
-  version "12.6.9"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-12.6.9.tgz#ffeee23afdc19ab16e979338e7b536fdebbbaeaf"
-  integrity sha512-+YB9FtyxXGyD54p8rXwWaN1EWEyar5L58GlGWgtH2I9rGmLGBQcw63+0jw+ujqVavNuO47S1ByAjm9zdHMnskw==
+"@types/node@*", "@types/node@^12.7.2":
+  version "12.7.3"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-12.7.3.tgz#27b3f40addaf2f580459fdb405222685542f907a"
+  integrity sha512-3SiLAIBkDWDg6vFo0+5YJyHPWU9uwu40Qe+v+0MH8wRKYBimHvvAOyk3EzMrD/TrIlLYfXrqDqrg913PynrMJQ==
 
 "@types/normalize-package-data@^2.4.0":
   version "2.4.0"
@@ -1321,11 +1321,16 @@ acorn@^5.5.3, acorn@^5.7.3:
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.3.tgz#67aa231bf8812974b85235a96771eb6bd07ea279"
   integrity sha512-T/zvzYRfbVojPWahDsE5evJdHb3oJoQfFbsrKM7w5Zcs++Tr257tia3BmMP8XYVjp1S9RZXQMh7gao96BlqZOw==
 
-acorn@^6.0.1, acorn@^6.0.5, acorn@^6.0.7, acorn@^6.2.0, acorn@^6.2.1:
+acorn@^6.0.1, acorn@^6.0.5, acorn@^6.0.7, acorn@^6.2.1:
   version "6.2.1"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-6.2.1.tgz#3ed8422d6dec09e6121cc7a843ca86a330a86b51"
   integrity sha512-JD0xT5FCRDNyjDda3Lrg/IxFscp9q4tiYtxE1/nOzlKCk7hIRuYjhq1kCNkbPjMRMZuFq20HNQn1I9k8Oj0E+Q==
 
+acorn@^7.0.0:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-7.0.0.tgz#26b8d1cd9a9b700350b71c0905546f64d1284e7a"
+  integrity sha512-PaF/MduxijYYt7unVGRuds1vBC9bFxbNf+VWqhOClfdgy7RlVkQqt610ig1/yxTgsDIfW1cWDel5EBbOy3jdtQ==
+
 ajv-errors@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/ajv-errors/-/ajv-errors-1.0.1.tgz#f35986aceb91afadec4102fbd85014950cefa64d"
@@ -6741,13 +6746,13 @@ rollup-pluginutils@^2.3.1, rollup-pluginutils@^2.5.0, rollup-pluginutils@^2.6.0,
     estree-walker "^0.6.1"
 
 rollup@^1.16.7:
-  version "1.18.0"
-  resolved "https://registry.yarnpkg.com/rollup/-/rollup-1.18.0.tgz#98ea36472523ed712e20c0e996fd051882f787e6"
-  integrity sha512-MBAWr6ectF948gW/bs/yfi0jW7DzwI8n0tEYG/ZMQutmK+blF/Oazyhg3oPqtScCGV8bzCtL9KzlzPtTriEOJA==
+  version "1.20.3"
+  resolved "https://registry.yarnpkg.com/rollup/-/rollup-1.20.3.tgz#6243f6c118ca05f56b2d9433112400cd834a1eb8"
+  integrity sha512-/OMCkY0c6E8tleeVm4vQVDz24CkVgvueK3r8zTYu2AQNpjrcaPwO9hE+pWj5LTFrvvkaxt4MYIp2zha4y0lRvg==
   dependencies:
     "@types/estree" "0.0.39"
-    "@types/node" "^12.6.3"
-    acorn "^6.2.0"
+    "@types/node" "^12.7.2"
+    acorn "^7.0.0"
 
 rsvp@^4.8.4:
   version "4.8.5"