chore(deps): update dependency rules_xcodeproj to v1.18.0 (#960)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| rules_xcodeproj | bazel_dep | minor | `1.17.0` -> `1.18.0` |

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examples/firebase_example/MODULE.bazel

@@ -26,7 +26,7 @@ bazel_dep(
 
 bazel_dep(
     name = "rules_xcodeproj",
-    version = "1.17.0",
+    version = "1.18.0",
     dev_dependency = True,
 )
 bazel_dep(

examples/ios_sim/MODULE.bazel

@@ -37,7 +37,7 @@ bazel_dep(
 )
 bazel_dep(
     name = "rules_xcodeproj",
-    version = "1.17.0",
+    version = "1.18.0",
     dev_dependency = True,
 )