Bump @babel/plugin-syntax-dynamic-import in /WcaOnRails

Bumps [@babel/plugin-syntax-dynamic-import](https://github.com/babel/babel) from 7.8.0 to 7.8.3.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/master/CHANGELOG.md)
- [Commits](babel/babel@v7.8.0...v7.8.3)

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

WcaOnRails/package.json

@@ -8,7 +8,7 @@
     "@babel/plugin-proposal-json-strings": "^7.8.3",
     "@babel/plugin-proposal-numeric-separator": "^7.7.4",
     "@babel/plugin-proposal-throw-expressions": "^7.7.4",
-    "@babel/plugin-syntax-dynamic-import": "^7.2.0",
+    "@babel/plugin-syntax-dynamic-import": "^7.8.3",
     "@babel/plugin-syntax-import-meta": "^7.7.4",
     "@babel/polyfill": "^7.7.0",
     "@babel/preset-env": "^7.8.2",

WcaOnRails/yarn.lock

@@ -482,10 +482,10 @@
   dependencies:
     "@babel/helper-plugin-utils" "^7.0.0"
 
-"@babel/plugin-syntax-dynamic-import@^7.2.0", "@babel/plugin-syntax-dynamic-import@^7.8.0":
-  version "7.8.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-syntax-dynamic-import/-/plugin-syntax-dynamic-import-7.8.0.tgz#3a6c1cd36af923db602df83c5aa72e08bb14353a"
-  integrity sha512-Mx2RzpCHJaBfmFdA2abXDKRHVJdzJ6R0Wqwb6TxCgM7NRR5wcC4cyiAsRL7Ga+lwG8GG1cKvb+4ENjic8y15jA==
+"@babel/plugin-syntax-dynamic-import@^7.2.0", "@babel/plugin-syntax-dynamic-import@^7.8.0", "@babel/plugin-syntax-dynamic-import@^7.8.3":
+  version "7.8.3"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-syntax-dynamic-import/-/plugin-syntax-dynamic-import-7.8.3.tgz#62bf98b2da3cd21d626154fc96ee5b3cb68eacb3"
+  integrity sha512-5gdGbFon+PszYzqs83S3E5mpi7/y/8M9eC90MRTZfduQOYW76ig6SOSPNe41IG5LoP3FGBn2N0RjVDSQiS94kQ==
   dependencies:
     "@babel/helper-plugin-utils" "^7.8.0"