Update PSP job to build directly on runner

Replaces Docker build with direct pspdev toolchain installation from
GitHub releases and runs build-psp.sh natively on the Ubuntu runner.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.github/workflows/build.yml

@@ -79,10 +79,23 @@ jobs:
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
-      - name: Set up Docker
-        uses: docker/setup-docker-action@v5
-      - name: Build psp
-        run: ./scripts/build-psp-docker.sh
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y \
+            python3 \
+            python3-pip \
+            python3-dotenv
+      - name: Install pspdev toolchain
+        run: |
+          wget -q \
+            https://github.com/pspdev/pspdev/releases/latest/download/pspdev-ubuntu-latest-x86_64.tar.gz \
+            -O /tmp/pspdev.tar.gz
+          sudo tar -xzf /tmp/pspdev.tar.gz -C /usr/local
+          echo "PSPDEV=/usr/local/pspdev" >> $GITHUB_ENV
+          echo "/usr/local/pspdev/bin" >> $GITHUB_PATH
+      - name: Build PSP
+        run: ./scripts/build-psp.sh
       - name: Move EBOOT.PBP to Dusk subfolder
         run: |
           mkdir -p ./git-artifcats/Dusk/PSP/GAME/Dusk