chore: go back to Alpine dynamic linking since I think it's the best I can do

Dockerfile

@@ -1,5 +1,5 @@
-ARG RUST_TAG=1.94.1-alpine3.23
-FROM rust:${RUST_TAG} AS builder
+ARG ALPINE_TAG=3.23.4
+FROM alpine:${ALPINE_TAG} AS builder
 
 ARG BUILD_BASE_VERSION=0.5-r3
 RUN --mount=type=cache,sharing=locked,target=/var/cache/apk \
@@ -37,7 +37,6 @@ ARG PROTOC_VERSION=31.1-r1
 RUN --mount=type=cache,sharing=locked,target=/var/cache/apk \
     apk add --update protoc=${PROTOC_VERSION}
 
-ENV CXXFLAGS="-include cstdint"
 RUN \
     # This one would be nice if it worked:
     # --mount=type=bind,source=.,target=/root/app \
@@ -53,7 +52,8 @@ RUN \
     cargo build --release && \
     cp target/release/fomo-reducer /root/program
 
-FROM scratch AS runner
+ARG ALPINE_TAG=3.23.4
+FROM alpine:${ALPINE_TAG} AS runner
 
 COPY --from=builder /root/program /program