Add sitemap CI/CD

Signed-off-by: Arija A. <ari@ari.lt>

.forgejo/workflows/sitemap.yml

@@ -0,0 +1,40 @@
+on:
+    push:
+        paths:
+            - "pages/**"
+            - "sitemap.sh"
+
+jobs:
+    stats:
+        runs-on: ubuntu-latest
+        container: catthehacker/ubuntu:act-latest
+        steps:
+            - uses: actions/checkout@v4
+              with:
+                  token: ${{ secrets.GIT_TOKEN }}
+
+            - name: Set up repository
+              id: check_commit
+              run: |
+                  git reset --hard
+                  git pull
+                  git reset --hard
+
+            - name: Generate sitemap
+              run: |
+                  sh ./sitemap.sh
+
+            - name: Stage the changes
+              run: |
+                  git add sitemap.xml
+
+            - name: Commit and Push Changes
+              run: |
+                  if git diff --staged --quiet; then
+                    echo "No changes to commit."
+                  else
+                    git config --local user.email "sitemap@localhost"
+                    git config --local user.name "Sitemap CI/CD"
+                    git commit -am "[skip ci] Update sitemap" || echo "No changes to commit"
+                    git push origin HEAD -f
+                  fi