meshtasticd-debian: Include core_dir in sdeb (#5761)

debian/ci_pack_sdeb.sh

@@ -2,7 +2,7 @@
 export DEBEMAIL="jbennett@incomsystems.biz"
 export PLATFORMIO_LIBDEPS_DIR=pio/libdeps
 export PLATFORMIO_PACKAGES_DIR=pio/packages
-export PLATFORMIO_CORE_DIR=.pio_core
+export PLATFORMIO_CORE_DIR=pio/core
 
 # Download libraries to `libdeps`
 platformio pkg install -e native

debian/rules

@@ -7,7 +7,7 @@
 
 # https://docs.platformio.org/en/latest/envvars.html
 PIO_ENV:=\
-	PLATFORMIO_CORE_DIR=.pio_core \
+	PLATFORMIO_CORE_DIR=pio/core \
 	PLATFORMIO_LIBDEPS_DIR=pio/libdeps \
 	PLATFORMIO_PACKAGES_DIR=pio/packages
 

debian/source/include-binaries

@@ -1,2 +1,3 @@
 pio/libdeps
 pio/packages
+pio/core