Let the workflow create a new PR when changes are available

.github/workflows/tech_radar.yml

@@ -136,8 +136,11 @@ jobs:
           if [ `git ls-files -m | wc -l` -gt 0 ]; then
             git config user.name "github-actions[bot]"
             git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
+            git checkout -b github-actions/update_tech_radar_$(date +"%Y-%m-%d")
             git add public/techRadar/used_languages.md
             git add public/techRadar/used_dependencies.md
-            git commit -m "Update Tech Radar"
+            git commit -m "Update Tech Radar $(date +"%Y-%m-%d")"
             git push
+
+            gh pr create --fill
           fi