build: Update QEMU base image to v7.30 (#1713)

Dockerfile

@@ -3,7 +3,7 @@
 ARG VERSION_ARG="latest"
 FROM scratch AS build-amd64
 
-COPY --from=qemux/qemu:7.29 / /
+COPY --from=qemux/qemu:7.30 / /
 
 ARG TARGETARCH
 ARG DEBCONF_NOWARNINGS="yes"

src/entry.sh

@@ -23,6 +23,7 @@ cd /run
 . proc.sh       # Initialize processor
 . power.sh      # Configure shutdown
 . memory.sh     # Check available memory
+. balloon.sh    # Initialize ballooning
 . config.sh     # Configure arguments
 . finish.sh     # Finish initialization