⬆️ Bump next-sitemap from 2.1.5 to 2.1.9 (#979)

Bumps [next-sitemap](https://github.com/iamvishnusankar/next-sitemap) from 2.1.5 to 2.1.9.
- [Release notes](https://github.com/iamvishnusankar/next-sitemap/releases)
- [Commits](iamvishnusankar/next-sitemap@v2.1.5...v2.1.9)

---
updated-dependencies:
- dependency-name: next-sitemap
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

yarn.lock

@@ -3554,9 +3554,9 @@ next-pwa@^5.4.4:
     workbox-window "^6.4.2"
 
 next-sitemap@^2.1.5:
-  version "2.1.5"
-  resolved "https://registry.yarnpkg.com/next-sitemap/-/next-sitemap-2.1.5.tgz#dce63aeaf3047ecbc3dcad8d041a55d18efa756e"
-  integrity sha512-4FDQhofIOa6kJf8s7BJ7XHbm5UdJ4dqwDnOB9sHl7zi4X50rzNf12wPhW/K41wZohtPKZV2jmrrc+XDxj1dpcA==
+  version "2.1.9"
+  resolved "https://registry.yarnpkg.com/next-sitemap/-/next-sitemap-2.1.9.tgz#3dc2751c2f8a77dcc74a26ecf326aeb31d0d5c61"
+  integrity sha512-ESd+kbTwCpCttz+vH4xgBpJxdT93ODvSt1xoQvVa7q+Rg8mN/9SkxX6Z+N3cDNvB5TNjLc8/kbl4PdVHQINvVA==
   dependencies:
     "@corex/deepmerge" "^2.6.148"
     minimist "^1.2.5"