build: Fix docker build, and speed it up a bit?

.dockerignore

@@ -1,4 +1,3 @@
-.svn
-db.sqlite
-out/**/*.o
-out/**/*.d
+.git
+db.sqlite*
+out/

.gitea/workflows/build.yaml

@@ -30,7 +30,7 @@ jobs:
         uses: android-actions/setup-android@v3
         with:
           packages: 'tools platform-tools build-tools;34.0.0 platforms;android-34 ndk;26.3.11579264'
-      - run: docker build .
+      - run: DOCKER_BUILDKIT=1 docker build .
       - run: ANDROID_SDK=$HOME/.android/sdk make -j`nproc` all dist docs
       - uses: actions/upload-artifact@v3
         with:

Dockerfile

@@ -1,4 +1,4 @@
-FROM bitnami/minideb:bullseye AS build
+FROM bitnami/minideb:bookworm AS build
 
 RUN apt-get update && \
 	apt-get install -y --no-install-recommends \
@@ -10,7 +10,7 @@ RUN apt-get update && \
 COPY . /app
 RUN make -C /app -j $(nproc) release
 
-FROM bitnami/minideb:bullseye
+FROM bitnami/minideb:bookworm
 
 COPY --from=build /app/out/release/tildefriends /app/out/release/tildefriends
 COPY --from=build /app/apps /app/apps