housekeeping(dev-deps): babel monorepo@7.12.0 (#6521)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

package.json

@@ -98,15 +98,15 @@
     "zenscroll": "^4.0.2"
   },
   "devDependencies": {
-    "@babel/cli": "=7.11.6",
-    "@babel/core": "=7.11.6",
+    "@babel/cli": "=7.12.0",
+    "@babel/core": "=7.12.0",
     "@babel/plugin-proposal-class-properties": "=7.10.4",
-    "@babel/plugin-proposal-nullish-coalescing-operator": "=7.10.4",
-    "@babel/plugin-proposal-optional-chaining": "=7.11.0",
-    "@babel/plugin-transform-runtime": "=7.11.5",
-    "@babel/preset-env": "=7.11.5",
+    "@babel/plugin-proposal-nullish-coalescing-operator": "=7.12.0",
+    "@babel/plugin-proposal-optional-chaining": "=7.12.0",
+    "@babel/plugin-transform-runtime": "=7.12.0",
+    "@babel/preset-env": "=7.12.0",
     "@babel/preset-react": "=7.10.4",
-    "@babel/register": "=7.11.5",
+    "@babel/register": "=7.12.0",
     "@jest/globals": "=26.5.2",
     "@release-it/conventional-changelog": "=1.1.4",
     "autoprefixer": "^9.0.0",