cgi-io: update to latest Git HEAD

901b0f0 main: fix two one-byte overreads in header_value()

Signed-off-by: Jo-Philipp Wich <jo@mein.io>
(cherry picked from commit 443c6c1c17e29466cc81f44504602d66d993bf86)

net/cgi-io/Makefile

@@ -8,13 +8,13 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=cgi-io
-PKG_RELEASE:=20
+PKG_RELEASE:=21
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL=$(PROJECT_GIT)/project/cgi-io.git
-PKG_SOURCE_DATE:=2021-09-08
-PKG_SOURCE_VERSION:=98cef9dda63623eff07bd574ad7c98ef282af18d
-PKG_MIRROR_HASH:=dfbec859e261ef6851f76474739c19baaadc1e5cd3ae2d2b9d56a7782ac79963
+PKG_SOURCE_DATE:=2022-08-10
+PKG_SOURCE_VERSION:=901b0f0463c9d16a8cf5b9ed37118d8484bc9176
+PKG_MIRROR_HASH:=30348a8c9c8f82a06c4e8dd9fa69f1b686b953379faa42ad634b32e065ec970b
 CMAKE_INSTALL:=1
 
 PKG_LICENSE:=GPL-2.0-or-later