Use script/bootstrap in slash_commands.yml

.changelog/beea81c9c138428aaf1d0d09e0b7120f.md

@@ -0,0 +1,4 @@
+---
+type: none
+---
+Use script/bootstrap in slash_commands.yml

.github/workflows/slash_commands.yml

@@ -44,9 +44,7 @@ jobs:
           python-version: 3.13
           architecture: x64
       - name: Install dependencies
-        run: |
-          python -m pip install --upgrade pip
-          pip install -r requirements.txt
+        run: ./script/bootstrap
 
       # add the changelog entry
       - name: Changelog Create