Bump mhausenblas/mkdocs-deploy-gh-pages from 1.16 to 1.18

Bumps [mhausenblas/mkdocs-deploy-gh-pages](https://github.com/mhausenblas/mkdocs-deploy-gh-pages) from 1.16 to 1.18.
- [Release notes](https://github.com/mhausenblas/mkdocs-deploy-gh-pages/releases)
- [Commits](https://github.com/mhausenblas/mkdocs-deploy-gh-pages/compare/1.16...8d963868a668c929199daa13133704574025f627)

Signed-off-by: dependabot[bot] <support@github.com>
Change-Id: I4299e4e02d9f681cfd9a410c5b3a4ece9b99bd2c
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 7b26faa..b103cf1 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -15,6 +15,6 @@
           fetch-depth: 0
 
       - name: Deploy docs
-        uses: mhausenblas/mkdocs-deploy-gh-pages@1.16
+        uses: mhausenblas/mkdocs-deploy-gh-pages@1.18
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}