Update dependency version for mkdocs-material in gh-pages.yml

Author: bolak92

.github/workflows/gh-pages.yml

@@ -38,7 +38,7 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install Markdown==3.10 Jinja2==3.1.6 pymdown-extensions==10.18 mkdocs==1.6.1 mkdocstrings==1.0.0 mkdocstrings-python==2.0.1 mike==2.1.3 mkdocs-autorefs==1.4.3 mkdocs-material>=9.5.0 mkdocs-git-revision-date-localized-plugin==1.5.0 mkdocs-plugin-tags==1.0.2
+          pip install Markdown==3.10 Jinja2==3.1.6 pymdown-extensions==10.18 mkdocs==1.6.1 mkdocstrings==1.0.0 mkdocstrings-python==2.0.1 mike==2.1.3 mkdocs-autorefs==1.4.3 mkdocs-material==8.2.7 mkdocs-git-revision-date-localized-plugin==1.5.0 mkdocs-plugin-tags==1.0.2
       - name: Build site
         run: mkdocs build --strict
       - name: Upload artifact