Bump grpc from 1.77.0 to 1.78.0 (micrometer-metrics#7030)

Bumps `grpc` from 1.77.0 to 1.78.0.

Updates `io.grpc:grpc-api` from 1.77.0 to 1.78.0
- [Release notes](https://github.com/grpc/grpc-java/releases)
- [Commits](grpc/grpc-java@v1.77.0...v1.78.0)

Updates `io.grpc:grpc-core` from 1.77.0 to 1.78.0
- [Release notes](https://github.com/grpc/grpc-java/releases)
- [Commits](grpc/grpc-java@v1.77.0...v1.78.0)

Updates `io.grpc:grpc-inprocess` from 1.77.0 to 1.78.0
- [Release notes](https://github.com/grpc/grpc-java/releases)
- [Commits](grpc/grpc-java@v1.77.0...v1.78.0)

Updates `io.grpc:grpc-services` from 1.77.0 to 1.78.0
- [Release notes](https://github.com/grpc/grpc-java/releases)
- [Commits](grpc/grpc-java@v1.77.0...v1.78.0)

Updates `io.grpc:grpc-testing-proto` from 1.77.0 to 1.78.0
- [Release notes](https://github.com/grpc/grpc-java/releases)
- [Commits](grpc/grpc-java@v1.77.0...v1.78.0)

---
updated-dependencies:
- dependency-name: io.grpc:grpc-api
  dependency-version: 1.78.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: io.grpc:grpc-core
  dependency-version: 1.78.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: io.grpc:grpc-inprocess
  dependency-version: 1.78.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: io.grpc:grpc-services
  dependency-version: 1.78.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: io.grpc:grpc-testing-proto
  dependency-version: 1.78.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -17,7 +17,7 @@ ehcache2 = "2.10.9.2"
 ehcache3 = "3.11.1"
 gmetric4j = "1.0.10"
 google-cloud-monitoring = "3.82.0"
-grpc = "1.77.0"
+grpc = "1.78.0"
 grpcKotlin = "1.4.3"
 guava = "32.1.3-jre"
 guice = "5.1.0"