ci: Fix image and remove sudo

.forgejo/workflows/deploy.yaml

@@ -8,6 +8,7 @@ on:
 jobs:
   build:
     runs-on: docker
+    container: catthehacker/ubuntu:act-latest
     steps:
       - uses: actions/checkout@v3
 
@@ -18,11 +19,11 @@ jobs:
 
       - name: Install dependencies
         run: |
-          sudo apt install pkg-config libmagickwand-dev imagemagick gcc libc-dev
+          apt install pkg-config libmagickwand-dev imagemagick gcc libc-dev
 
       - name: Patch ghostsccript thanks to CVE-2018-16509
         run: |
-          sudo sed -i '$i<policy domain="coder" rights="read | write" pattern="PDF" />' /etc/ImageMagick-6/policy.xml
+          sed -i '$i<policy domain="coder" rights="read | write" pattern="PDF" />' /etc/ImageMagick-6/policy.xml
 
       - name: Build
         run: |