fix: back to env variables repo, version and hash

Signed-off-by: Vinicius Lublanski <vlublima@gmail.com>

Author: Lublanski

cli/spring-boot-cli/src/main/homebrew/spring-boot.rb

@@ -2,9 +2,9 @@
 
 class SpringBoot < Formula
   homepage 'https://spring.io/projects/spring-boot'
-  url 'https://repo.maven.apache.org/maven2/org/springframework/boot/spring-boot-cli/3.5.6/spring-boot-cli-3.5.6-bin.tar.gz'
-  version '3.5.6'
-  sha256 '3ac9314100c474ddad1c4ae04a85404383817d6f748820980e26ccbe55393bbe'
+  url '${repo}/org/springframework/boot/spring-boot-cli/${version}/spring-boot-cli-${version}-bin.tar.gz'
+  version '${version}'
+  sha256 '${hash}'
   head 'https://github.com/spring-projects/spring-boot.git', :branch => "main"
 
   def install