chore: example shouldn't use newer bzlmod deps

This ensures that the root MODULE.bazel has high enough lower-bounds

MODULE.bazel

@@ -3,7 +3,7 @@
 module(
     name = "protobuf",
     compatibility_level = 1,
-    version = "23.1",
+    version = "27.0",
 )
 
 # LOWER BOUND dependency versions.
@@ -11,8 +11,8 @@ module(
 # https://bazel.build/versions/6.0.0/build/bzlmod#version-resolution
 # Thus the highest version in their module graph is resolved.
 bazel_dep(name = "abseil-cpp", repo_name = "com_google_absl", version = "20230802.0.bcr.1")
-bazel_dep(name = "bazel_skylib", version = "1.0.3")
-bazel_dep(name = "rules_cc", version = "0.0.1")
+bazel_dep(name = "bazel_skylib", version = "1.4.1")
+bazel_dep(name = "rules_cc", version = "0.0.9")
 bazel_dep(name = "rules_java", version = "4.0.0")
 bazel_dep(name = "rules_jvm_external", version = "5.1")
 bazel_dep(name = "rules_pkg", version = "0.7.0")

examples/MODULE.bazel

@@ -6,8 +6,8 @@ local_path_override(
     path = "..",
 )
 
-bazel_dep(name = "bazel_skylib", version = "1.5.0")
-bazel_dep(name = "rules_cc", version = "0.0.9")
+bazel_dep(name = "bazel_skylib", version = "1.0.3")
+bazel_dep(name = "rules_cc", version = "0.0.1")
 bazel_dep(name = "rules_java", version = "7.3.0")
-bazel_dep(name = "rules_pkg", version = "0.10.1")
-bazel_dep(name = "rules_proto", version = "6.0.0-rc2")
+bazel_dep(name = "rules_pkg", version = "0.7.0")
+bazel_dep(name = "rules_proto", version = "4.0.0")