package/go: security bump to version 1.16.7

go1.16.7 (released 2021-08-05) includes a security fix to the
net/http/httputil package, as well as bug fixes to the compiler, the
linker, the runtime, the go command, and the net/http package.

https://golang.org/doc/devel/release#go1.16

Signed-off-by: Christian Stewart <christian@paral.in>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/go/go.hash

@@ -1,3 +1,3 @@
 # From https://golang.org/dl/
-sha256  a3a5d4bc401b51db065e4f93b523347a4d343ae0c0b08a65c3423b05a138037d  go1.16.6.src.tar.gz
+sha256  1a9f2894d3d878729f7045072f30becebe243524cf2fce4e0a7b248b1e0654ac  go1.16.7.src.tar.gz
 sha256  2d36597f7117c38b006835ae7f537487207d8ec407aa9d9980794b2030cbc067  LICENSE

package/go/go.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-GO_VERSION = 1.16.6
+GO_VERSION = 1.16.7
 GO_SITE = https://storage.googleapis.com/golang
 GO_SOURCE = go$(GO_VERSION).src.tar.gz