Bump the grpc group with 1 update

Bumps Grpc.Tools from 2.78.0 to 2.80.0

---
updated-dependencies:
- dependency-name: Grpc.Tools
  dependency-version: 2.80.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: grpc
...

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

Author: dependabot[bot]

Directory.Packages.props

@@ -6,7 +6,7 @@
   <ItemGroup>
     <!-- gRPC -->
     <PackageVersion Include="Grpc.Net.Client" Version="2.76.0" />
-    <PackageVersion Include="Grpc.Tools" Version="2.78.0" />
+    <PackageVersion Include="Grpc.Tools" Version="2.80.0" />
     <PackageVersion Include="Google.Protobuf" Version="3.34.1" />
 
     <!-- Arrow Flight -->