regenerate_maps: move to selfhosted runner

remove dos2unix already installed on runner

.github/workflows/generate_maps.yml

@@ -5,8 +5,7 @@ on:
 
 jobs:
   build:
-    runs-on: ubuntu-latest
-
+    runs-on: self-hosted
     steps:
       - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
         with:
@@ -16,10 +15,6 @@ jobs:
         run: |
           pip3 install -r requirements.txt
 
-      - name: "Install shell requirements"
-        run: |
-          sudo apt -y install dos2unix
-
       - name: "Build PR"
         run: |
           bash -x ./build.sh myoutdir