Change Docker image and install switch-dev

Updated the Docker image for the build container and added a step to install switch-dev.

.github/workflows/build.yml

@@ -12,7 +12,7 @@ jobs:
 
     # Minimal devkitA64 container, apparently dkp-toolchain isn't needed?
     container:
-      image: devkitpro/devkita64:20251231 # latest breaks ams building for some reason
+      image: devkitpro/toolchain-base:20250727
 
     steps:
       - name: Checkout repository and submodules # needed for hoc-clk
@@ -20,6 +20,10 @@ jobs:
         with:
           submodules: recursive
 
+
+      - name: install switch-dev
+        run: dkp-pacman -Syu switch-dev --noconfirm
+
       - name: Set devkitPro PATH
         run: |
           echo "DEVKITPRO=/opt/devkitpro" >> $GITHUB_ENV