GP-0: No longer instructing users to run the "init" gradle task during

fetchDepdendencies.gradle. It didn't play nice with gradle 8.9.
(Closes #6724)

README.md

@@ -67,7 +67,7 @@ repository: `git clone https://github.com/NationalSecurityAgency/ghidra.git`
 
 ##### Download additional build dependencies into source repository: 
 ```
-gradle -I gradle/support/fetchDependencies.gradle init
+gradle -I gradle/support/fetchDependencies.gradle
 ```
 
 ##### Create development build: