Update dependency grpc to v1.69.0

Author: renovate[bot]

MODULE.bazel

@@ -20,7 +20,7 @@ bazel_dep(name = "depend_on_what_you_use", version = "0.6.0")
 bazel_dep(name = "google_benchmark", version = "1.8.5")
 bazel_dep(name = "googletest", version = "1.15.2")
 
-bazel_dep(name = "grpc", version = "1.68.0")
+bazel_dep(name = "grpc", version = "1.69.0")
 single_version_override(
     module_name = "grpc",
     patch_strip = 1,

x/MODULE.bazel

@@ -24,7 +24,7 @@ bazel_dep(name = "depend_on_what_you_use", version = "0.6.0")
 bazel_dep(name = "google_benchmark", version = "1.8.5")
 bazel_dep(name = "googletest", version = "1.15.2")
 
-bazel_dep(name = "grpc", version = "1.68.0")
+bazel_dep(name = "grpc", version = "1.69.0")
 single_version_override(
     module_name = "grpc",
     patch_strip = 1,