package/gnuplot: bump version to 5.4.4

Signed-off-by: Michael Fischer <mf@go-sys.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/gnuplot/gnuplot.hash

@@ -1,6 +1,6 @@
-# From https://sourceforge.net/projects/gnuplot/files/gnuplot/5.4.2/
-md5  9bb03cfa77e38924e08ffbb9eb59d8b1  gnuplot-5.4.3.tar.gz
-sha1  c4b60fd7a700b22fa62b14829cbb0e17911627c9  gnuplot-5.4.3.tar.gz
+# From https://sourceforge.net/projects/gnuplot/files/gnuplot/5.4.4/
+md5  209c6da8693fa15ae1527c832075ef0f  gnuplot-5.4.4.tar.gz
+sha1  3305bb255d379eaf0b5181a01cb71119cf89c110  gnuplot-5.4.4.tar.gz
 # Locally computed
-sha256  51f89bbab90f96d3543f95235368d188eb1e26eda296912256abcd3535bd4d84  gnuplot-5.4.3.tar.gz
+sha256  372300b7867f5b3538b25fc5d0ac7734af6e3fe0d202b6db926e4369913f0902  gnuplot-5.4.4.tar.gz
 sha256  895928ec0735cca1c8cec42656c7e314a065d0242813bb8693c0c1bf61fd4e4d  Copyright

package/gnuplot/gnuplot.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-GNUPLOT_VERSION = 5.4.3
+GNUPLOT_VERSION = 5.4.4
 GNUPLOT_SITE = http://downloads.sourceforge.net/project/gnuplot/gnuplot/$(GNUPLOT_VERSION)
 GNUPLOT_LICENSE = gnuplot license (open source)
 GNUPLOT_LICENSE_FILES = Copyright