Update cross toolchain for GCC 15.1

Gemfile

@@ -3,3 +3,4 @@
 source "https://rubygems.org"
 
 gem 'rubyzip', '~> 2.4'
+gem "term-ansicolor", "~> 1.11"

Gemfile.lock

@@ -1,7 +1,14 @@
 GEM
   remote: https://rubygems.org/
   specs:
+    bigdecimal (3.2.2)
     rubyzip (2.4.1)
+    sync (0.5.0)
+    term-ansicolor (1.11.2)
+      tins (~> 1.0)
+    tins (1.38.0)
+      bigdecimal
+      sync
 
 PLATFORMS
   ruby
@@ -9,6 +16,7 @@ PLATFORMS
 
 DEPENDENCIES
   rubyzip (~> 2.4)
+  term-ansicolor (~> 1.11)
 
 BUNDLED WITH
-   2.6.2
+   2.6.7

bin/cross_toolchain.rb

@@ -11,11 +11,12 @@ require 'open3'
 require 'etc'
 require 'fileutils'
 require 'pathname'
+require 'term/ansicolor'
 
-BINUTILS_VERSION = '2.43.1'
-GLIBC_VERSION = '2.40'
-KERNEL_VERSION = '5.15.178'
-GCC_VERSION = "14.2.0"
+BINUTILS_VERSION = '2.44'
+GLIBC_VERSION = '2.41'
+KERNEL_VERSION = '5.15.185'
+GCC_VERSION = "15.1.0"
 
 TMP = Pathname.new('./tmp')
 
@@ -85,6 +86,8 @@ def find_build_target(gcc_version, target)
 end
 
 def download_and_unarchive(url, target)
+  puts Term::ANSIColor.green "Downloading #{url}."
+
   case File.extname url.path
   when '.bz2'
     archive_type = '-j'