fix: package.json & yarn.lock to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-BOOTSTRAP-7444580

package.json

@@ -3,7 +3,7 @@
   "private": true,
   "dependencies": {
     "@rails/webpacker": "^5.2.2",
-    "bootstrap": "^4.3.1",
+    "bootstrap": "^5.0.0",
     "copy-to-clipboard": "^3.0.8",
     "es6-promise": "^4.2.8",
     "expose-loader": "^0.7.5",

yarn.lock

@@ -1888,10 +1888,10 @@ boolbase@^1.0.0, boolbase@~1.0.0:
   resolved "https://registry.yarnpkg.com/boolbase/-/boolbase-1.0.0.tgz#68dff5fbe60c51eb37725ea9e3ed310dcc1e776e"
   integrity sha1-aN/1++YMUes3cl6p4+0xDcwed24=
 
-bootstrap@^4.3.1:
-  version "4.6.0"
-  resolved "https://registry.yarnpkg.com/bootstrap/-/bootstrap-4.6.0.tgz#97b9f29ac98f98dfa43bf7468262d84392552fd7"
-  integrity sha512-Io55IuQY3kydzHtbGvQya3H+KorS/M9rSNyfCGCg9WZ4pyT/lCxIlpJgG1GXW/PswzC84Tr2fBYi+7+jFVQQBw==
+bootstrap@^5.0.0:
+  version "5.3.3"
+  resolved "https://registry.yarnpkg.com/bootstrap/-/bootstrap-5.3.3.tgz#de35e1a765c897ac940021900fcbb831602bac38"
+  integrity sha512-8HLCdWgyoMguSO9o+aH+iuZ+aht+mzW0u3HIMzVu7Srrpv7EBBxTnrFlSCskwdY1+EOFQSm7uMJhNQHkdPcmjg==
 
 brace-expansion@^1.1.7:
   version "1.1.11"