Bump grpc from 1.78.0 to 1.80.0-pre1

Bumps [grpc](https://github.com/grpc/grpc) from 1.78.0 to 1.80.0-pre1.
- [Release notes](https://github.com/grpc/grpc/releases)
- [Commits](grpc/grpc@v1.78.0...v1.80.0-pre1)

---
updated-dependencies:
- dependency-name: grpc
  dependency-version: 1.80.0-pre1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

MODULE.bazel

@@ -11,7 +11,7 @@ module(
 bazel_dep(name = "abseil-cpp", version = "20260107.1", repo_name = "com_google_absl")
 bazel_dep(name = "bazel_skylib", version = "1.9.0")
 bazel_dep(name = "curl", version = "8.12.0")
-bazel_dep(name = "grpc", version = "1.78.0", repo_name = "com_github_grpc_grpc")
+bazel_dep(name = "grpc", version = "1.80.0-pre1", repo_name = "com_github_grpc_grpc")
 bazel_dep(name = "nlohmann_json", version = "3.12.0.bcr.1", repo_name = "github_nlohmann_json")
 bazel_dep(name = "opentelemetry-proto", version = "1.8.0", repo_name = "com_github_opentelemetry_proto")
 bazel_dep(name = "opentracing-cpp", version = "1.6.0", repo_name = "com_github_opentracing")