tools/squashfs4: update to 4.7.2

This minor version update only includes some build fixes and
improvements.

Release Notes:
  https://github.com/plougher/squashfs-tools/releases/tag/4.7.1
  https://github.com/plougher/squashfs-tools/releases/tag/4.7.2

Remove upstream patches:
  001-thread-add-the-missing-pthread.h-header.patch[1]
  002-print_pager-add-missing-includes.patch[2]

[1] plougher/squashfs-tools@b6e9f4b
[2] plougher/squashfs-tools@05a895b

Signed-off-by: Shiji Yang <[email protected]>
Link: openwrt/openwrt#19820
Signed-off-by: Nick Hainke <[email protected]>

Author: DragonBluep

tools/squashfs4/Makefile

@@ -8,14 +8,14 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=squashfs4
 PKG_CPE_ID:=cpe:/a:phillip_lougher:squashfs
-PKG_VERSION:=4.7.0
-PKG_RELEASE=2
+PKG_VERSION:=4.7.2
+PKG_RELEASE=1
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL:=https://github.com/plougher/squashfs-tools
-PKG_SOURCE_DATE:=2025-06-04
-PKG_SOURCE_VERSION:=2e87d42ed089dc31990d83eeb07437b9d085d6d1
-PKG_MIRROR_HASH:=ff5c545b8d64e1c3a1316abde0b6ba297c267fa3daed264eff2038dc99649869
+PKG_SOURCE_DATE:=2025-08-19
+PKG_SOURCE_VERSION:=99d23a31b471433c51e9c145aeba2ab1536e34df
+PKG_MIRROR_HASH:=229a1b8f465fa0f576b5ace1753a8e9d28a2c4254ec2b019668baa676094f6c3
 
 HOST_BUILD_PARALLEL:=1