use relative urls in submodules

old-commit-hash: 5f2a5e5bad

.gitmodules

@@ -1,15 +1,16 @@
-[submodule "apks"]
-	path = apks
-	url = git@github.com:commaai/openpilot-apks.git
-[submodule "cereal"]
-	path = cereal
-	url = git@github.com:commaai/cereal.git
 [submodule "panda"]
 	path = panda
-	url = git@github.com:commaai/panda.git
-[submodule "laika_repo"]
-	path = laika_repo
-	url = git@github.com:commaai/laika.git
+	url = ../panda.git
 [submodule "opendbc"]
 	path = opendbc
-	url = git@github.com:commaai/opendbc.git
+	url = ../opendbc.git
+[submodule "laika_repo"]
+	path = laika_repo
+	url = ../laika.git
+[submodule "apks"]
+	path = apks
+	url = ../openpilot-apks.git
+[submodule "cereal"]
+	path = cereal
+	url = ../cereal.git
+