chore: add licenses for formulae files

Signed-off-by: Rui Chen <rui@chenrui.dev>

act_runner-head.rb

@@ -4,6 +4,7 @@ class ActRunnerHead < Formula
   desc "A runner for Gitea based on act"
   homepage "https://gitea.com/gitea/act_runner"
   version "main"
+  license "MIT"
 
   os = OS.mac? ? "darwin" : "linux"
   arch = case Hardware::CPU.arch

act_runner.rb

@@ -4,6 +4,7 @@ class ActRunner < Formula
   desc "A runner for Gitea based on act"
   homepage "https://gitea.com/gitea/act_runner"
   version "0.2.5"
+  license "MIT"
 
   os = OS.mac? ? "darwin" : "linux"
   arch = case Hardware::CPU.arch

changelog.rb

@@ -4,6 +4,7 @@ class Changelog < Formula
   desc "Generate changelog of gitea repository"
   homepage "https://gitea.com/gitea/changelog"
   version "main"
+  license "MIT"
 
   os = OS.mac? ? "darwin-10.12" : "linux"
   arch = case Hardware::CPU.arch

gitea-head.rb

@@ -4,6 +4,7 @@ class GiteaHead < Formula
   desc "Git with a cup of tea, painless self-hosted git service"
   homepage "https://gitea.io"
   version "main"
+  license "MIT"
 
   os = OS.mac? ? "darwin-10.12" : "linux"
   arch = case Hardware::CPU.arch

gitea.rb

@@ -4,6 +4,7 @@ class Gitea < Formula
   desc "Git with a cup of tea, painless self-hosted git service"
   homepage "https://gitea.io"
   version "1.20.3"
+  license "MIT"
 
   os = OS.mac? ? "darwin-10.12" : "linux"
   arch = case Hardware::CPU.arch

tea-head.rb

@@ -4,6 +4,7 @@ class TeaHead < Formula
   desc "A command line tool to interact with Gitea servers"
   homepage "https://gitea.com/gitea/tea"
   version "main"
+  license "MIT"
 
   os = OS.mac? ? "darwin" : "linux"
   arch = case Hardware::CPU.arch

tea.rb

@@ -4,6 +4,7 @@ class Tea < Formula
   desc "A command line tool to interact with Gitea servers"
   homepage "https://gitea.com/gitea/tea"
   version "0.9.2"
+  license "MIT"
 
   os = OS.mac? ? "darwin" : "linux"
   arch = case Hardware::CPU.arch