fstools: update to git HEAD

 629726d blockd: fix resource leak discovered by coverity scan
 68ae639 libubi: fix several issues discovered by Coverity
 a77c4fa ubi: fix resource leak in legacy codepath
 2e3aca2 block: fix two resources leaks discovered by Coverity

Signed-off-by: Daniel Golle <[email protected]>

package/system/fstools/Makefile

@@ -12,9 +12,9 @@ PKG_RELEASE:=$(AUTORELEASE)
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL=$(PROJECT_GIT)/project/fstools.git
-PKG_MIRROR_HASH:=9cf9b4fd5951196813deb5c71dd24ad7af89348f7e647545b38760332953a8dc
-PKG_SOURCE_DATE:=2021-08-05
-PKG_SOURCE_VERSION:=d4f01298105bb8c97e7ac0cad0e78f0ffe261354
+PKG_MIRROR_HASH:=faa4679562ae31cb6dbbc90b7f3f297294a51f7be1b12d10a5f0b7acfaae7252
+PKG_SOURCE_DATE:=2021-08-14
+PKG_SOURCE_VERSION:=2e3aca299ea7bbe74f219860510c4b34e77c7aa4
 CMAKE_INSTALL:=1
 
 PKG_LICENSE:=GPL-2.0