manifest: Track our own system/apex

Change-Id: I5d1f4ef10999048cc360baa713549818103d0960
diff --git a/default.xml b/default.xml
index 46f858b..9a0935a 100644
--- a/default.xml
+++ b/default.xml
@@ -1030,7 +1030,7 @@
   <project path="prebuilts/vndk/v31" name="platform/prebuilts/vndk/v31" groups="pdk" clone-depth="1" remote="aosp" />
   <project path="prebuilts/vndk/v32" name="platform/prebuilts/vndk/v32" groups="pdk" clone-depth="1" remote="aosp" />
   <project path="sdk" name="platform/sdk" groups="pdk-cw-fs,pdk-fs" remote="aosp" />
-  <project path="system/apex" name="platform/system/apex" groups="pdk" remote="aosp" />
+  <project path="system/apex" name="LineageOS/android_system_apex" groups="pdk" />
   <project path="system/bpf" name="platform/system/bpf" groups="pdk" remote="aosp" />
   <project path="system/bpfprogs" name="platform/system/bpfprogs" groups="pdk" remote="aosp" />
   <project path="system/ca-certificates" name="platform/system/ca-certificates" groups="pdk" remote="aosp" />