Bump junit-report-builder from 3.0.1 to 3.1.0 in /formatter-junit

Bumps [junit-report-builder](https://github.com/davidparsson/junit-report-builder) from 3.0.1 to 3.1.0.
- [Commits](davidparsson/junit-report-builder@3.0.1...3.1.0)

---
updated-dependencies:
- dependency-name: junit-report-builder
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

formatter-junit/package.json

@@ -22,7 +22,7 @@
     "markdownlint-cli2": ">=0.0.4"
   },
   "dependencies": {
-    "junit-report-builder": "3.0.1"
+    "junit-report-builder": "3.1.0"
   },
   "keywords": [
     "markdownlint-cli2-formatter"