chore(deps): update dev dependency microbundle to ^0.12.3 (#707)

Co-authored-by: Renovate Bot <[email protected]>

Author: renovate[bot]

package-lock.json

@@ -35,7 +35,7 @@
     "jest-junit": "10.0.0",
     "jest-puppeteer": "4.4.0",
     "lint-staged": "10.2.11",
-    "microbundle": "^0.12.2",
+    "microbundle": "^0.12.3",
     "prettier": "2.0.5",
     "prettier-package-json": "2.1.3",
     "puppeteer": "3.3.0",