remove dependency on custom docker container, since it seems to be rather slow

I hope to speed things up by using the native ubuntu-latest, but it
might be just as slow, if not slower. In which case I'll likely switch
back.
If it is faster, the dockerfile will be deleted in a subsequent commit.

.github/workflows/ci.yaml

@@ -11,9 +11,8 @@ env:
   VCPKG_ROOT: /opt/vcpkg
   DEPS_VCPKG: glfw3:x64-linux-dynamic glfw3:x64-mingw-static
 jobs:
-  setup-vcpkg:
+  setup-deps:
     runs-on: ubuntu-latest
-    container: ghcr.io/thepigeongenerator/mcaselector-lite:latest
     outputs:
       CACHE_KEY_VCPKG: ${{steps.gen-keys.outputs.HASH_VCPKG}}
     steps:
@@ -29,13 +28,13 @@ jobs:
       # setup vcpkg if the cache didn't hit
       - if: steps.vcpkg-cache.outputs.cache-hit != 'true'
         run: |
+          sudo apt update && sudo apt install -y --no-install-recommends gcc-multilib mingw-w64 libxinerama-dev libxcursor-dev xorg-dev libglu1-mesa-dev
           git clone https://github.com/microsoft/vcpkg.git "$VCPKG_ROOT"
           "$VCPKG_ROOT/bootstrap-vcpkg.sh"
           "$VCPKG_ROOT/vcpkg" install $DEPS_VCPKG
   compile:
-    needs: setup-vcpkg
+    needs: setup-deps
     runs-on: ubuntu-latest
-    container: ghcr.io/thepigeongenerator/mcaselector-lite:latest
     strategy:
       matrix:
         include:
@@ -51,17 +50,18 @@ jobs:
         id: cache-vcpkg
         with:
           path: ${{env.VCPKG_ROOT}}
-          key: ${{needs.setup-vcpkg.outputs.CACHE_KEY_VCPKG}}
+          key: ${{needs.setup-deps.outputs.CACHE_KEY_VCPKG}}
       - if: steps.cache-vcpkg.outputs.cache-hit != 'true'
         run: echo -e "\033[31mcache failed to load!\033[0m" >&2; exit 1
+      # install APT deps
+      - run: sudo apt update && sudo apt install -y --no-install-recommends gcc-multilib mingw-w64
       - uses: actions/checkout@v4
       # compile
       - name: compile ${{matrix.march}}-${{matrix.kernel}}
         run: make compile MARCH=${{matrix.march}} KERNEL=${{matrix.kernel}} CC=${{matrix.cc}} -j
   test:
-    needs: setup-vcpkg
+    needs: setup-deps
     runs-on: ubuntu-latest
-    container: ghcr.io/thepigeongenerator/mcaselector-lite:latest
     strategy:
       matrix:
         include:
@@ -75,9 +75,11 @@ jobs:
         id: cache-vcpkg
         with:
           path: ${{env.VCPKG_ROOT}}
-          key: ${{needs.setup-vcpkg.outputs.CACHE_KEY_VCPKG}}
+          key: ${{needs.setup-deps.outputs.CACHE_KEY_VCPKG}}
       - if: steps.cache-vcpkg.outputs.cache-hit != 'true'
         run: echo -e "\033[31mcache failed to load!\033[0m" >&2; exit 1
+      # install APT deps
+      - run: sudo apt update && sudo apt install -y --no-install-recommends gcc-multilib mingw-w64 libglfw3
       # compile and execute tests
       - uses: actions/checkout@v4
       - name: execute tests for ${{matrix.march}}-${{matrix.kernel}}