package/go: bump to v1.19.13

go1.19.13 (released 2023-09-06) includes a couple of bug fixes.  In
particular it fixes a bug introduced with the update to v1.19.11 which
broke http using a unix socket addressing.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/go/go.hash

@@ -1,3 +1,3 @@
 # From https://go.dev/dl
-sha256  ee5d50e0a7fd74ba1b137cb879609aaaef9880bf72b5d1742100e38ae72bb557  go1.19.12.src.tar.gz
+sha256  ccf36b53fb0024a017353c3ddb22c1f00bc7a8073c6aac79042da24ee34434d3  go1.19.13.src.tar.gz
 sha256  2d36597f7117c38b006835ae7f537487207d8ec407aa9d9980794b2030cbc067  LICENSE

package/go/go.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-GO_VERSION = 1.19.12
+GO_VERSION = 1.19.13
 GO_SITE = https://storage.googleapis.com/golang
 GO_SOURCE = go$(GO_VERSION).src.tar.gz