cimg: fix sha256 (#7416)

* fix cimg sha256

* cl

packages/c/cimg/xmake.lua

@@ -7,9 +7,9 @@ package("cimg")
     add_urls("https://github.com/greyclab/cimg/archive/refs/tags/$(version).tar.gz", {version = function(version)
         return version:gsub("%v", "v.")
     end})
-    add_urls("https://github.com/greyclab/cimg.git")
+    add_urls("https://github.com/greyclab/cimg.git", {alias="git"})
 
-    add_versions("v3.5.5", "f202f71dd77a4434fc36725022912fb57098124b92c3c4f417155337dc1c57a0")
+    add_versions("v3.5.5", "ffc8f0cf77e39cdae79d44de9aec7cf7edb83d787233388b5ad4b5c2475f4241")
     add_versions("v3.5.4", "f3102efc0803cb52693b43adf759579feb3dbc018506a8004af5e29b40649ffb")
     add_versions("v3.5.3", "4b45e413a76ede23cb164fea74b4adc92500a873cfd87dd66cf8c93ce57ab627")
     add_versions("v3.5.2", "6ece3344b65cfcc30b286df9c621a66634c3a79da0b5041b4e01e3b33f2d22f1")
@@ -22,6 +22,8 @@ package("cimg")
     add_versions("v3.3.6", "7bb6621c38458152f3d1cae3f020e4ca6a314076cb7b4b5d6bbf324ad3d0ab88")
     add_versions("v3.2.6", "1fcca9a7a453aa278660c10d54c6db9b4c614b6a29250adeb231e95a0be209e7")
 
+    add_versions("git:v3.5.5", "v.3.5.5")
+
     if is_plat("windows") then
         add_syslinks("gdi32", "shell32", "user32")
     elseif is_plat("linux") then