package/swugenerator: bump to version 0.4

For release note, see:
https://github.com/sbabic/swugenerator/releases/tag/0.4

Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
[Julien: add link to release note]
Signed-off-by: Julien Olivain <ju.o@free.fr>

package/swugenerator/swugenerator.hash

@@ -1,4 +1,4 @@
 # Locally calculated
-sha256  3f4885242bce9523d26567578793c828e2f07122c6b7e44cce8ede33e5618a01  swugenerator-0.3.tar.gz
+sha256  80351fc1c57a6162bc07c44765f2cfd76f3d984dbefca79c3d59844aacd2957f  swugenerator-0.4.tar.gz
 # Locally computed sha256 checksums
 sha256  3972dc9744f6499f0f9b2dbf76696f2ae7ad8af9b23dde66d6af86c9dfb36986  LICENSE

package/swugenerator/swugenerator.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-SWUGENERATOR_VERSION = 0.3
+SWUGENERATOR_VERSION = 0.4
 SWUGENERATOR_SITE = $(call github,sbabic,swugenerator,$(SWUGENERATOR_VERSION))
 SWUGENERATOR_LICENSE = GPL-3.0
 SWUGENERATOR_LICENSE_FILES = LICENSE