Update .gitmodules to use the real repo and not the local one

Dont make people git pull the Ghidra changes for their builds to pass. Just use the url as intended and link directly to the git page :)

Author: ormaq

.gitmodules

@@ -1,4 +1,4 @@
 [submodule "public/ghidra-boom-street"]
 	path = public/ghidra-boom-street
-	url = ../ghidra-boom-street.git
+	url = https://github.com/FortuneStreetModding/ghidra-boom-street.git
 	branch = main