fix: Temporarily downgrade to Ubuntu 22.04

Author: AnimMouse

.github/workflows/build-ffmpeg.yaml

@@ -63,7 +63,7 @@ jobs:
 
   build:
     needs: check
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     strategy:
       matrix:
         os: [win64, win32]
@@ -79,7 +79,7 @@ jobs:
       - name: Install APT dependencies
         uses: awalsh128/cache-apt-pkgs-action@v1
         with:
-          packages: subversion ragel cvs yasm pax nasm gperf autogen autoconf-archive
+          packages: ragel cvs yasm pax nasm gperf autogen autoconf-archive
 
       - name: Install pip dependencies
         run: sudo -H pip3 -qq install meson ninja