deps(go): bump google.golang.org/grpc from 1.77.0 to 1.78.0

Bumps [google.golang.org/grpc](https://github.com/grpc/grpc-go) from 1.77.0 to 1.78.0.
- [Release notes](https://github.com/grpc/grpc-go/releases)
- [Commits](https://github.com/grpc/grpc-go/compare/v1.77.0...v1.78.0)

---
updated-dependencies:
- dependency-name: google.golang.org/grpc
  dependency-version: 1.78.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

go.mod

@@ -216,7 +216,7 @@ require (
 	golang.org/x/tools v0.40.0 // indirect; @grafana/grafana-as-code
 	gonum.org/v1/gonum v0.16.0 // @grafana/oss-big-tent
 	google.golang.org/api v0.242.0 // @grafana/grafana-backend-group
-	google.golang.org/grpc v1.77.0 // @grafana/plugins-platform-backend
+	google.golang.org/grpc v1.78.0 // @grafana/plugins-platform-backend
 	google.golang.org/protobuf v1.36.11 // @grafana/plugins-platform-backend
 	gopkg.in/ini.v1 v1.67.0 // @grafana/alerting-backend
 	gopkg.in/mail.v2 v2.3.1 // @grafana/grafana-backend-group

go.sum

@@ -3588,8 +3588,8 @@ google.golang.org/grpc v1.52.0/go.mod h1:pu6fVzoFb+NBYNAvQL08ic+lvB2IojljRYuun5v
 google.golang.org/grpc v1.53.0/go.mod h1:OnIrk0ipVdj4N5d9IUoFUx72/VlD7+jUsHwZgwSMQpw=
 google.golang.org/grpc v1.54.0/go.mod h1:PUSEXI6iWghWaB6lXM4knEgpJNu2qUcKfDtNci3EC2g=
 google.golang.org/grpc v1.55.0/go.mod h1:iYEXKGkEBhg1PjZQvoYEVPTDkHo1/bjTnfwTeGONTY8=
-google.golang.org/grpc v1.77.0 h1:wVVY6/8cGA6vvffn+wWK5ToddbgdU3d8MNENr4evgXM=
-google.golang.org/grpc v1.77.0/go.mod h1:z0BY1iVj0q8E1uSQCjL9cppRj+gnZjzDnzV0dHhrNig=
+google.golang.org/grpc v1.78.0 h1:K1XZG/yGDJnzMdd/uZHAkVqJE+xIDOcmdSFZkBUicNc=
+google.golang.org/grpc v1.78.0/go.mod h1:I47qjTo4OKbMkjA/aOOwxDIiPSBofUtQUI5EfpWvW7U=
 google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.1.0/go.mod h1:6Kw0yEErY5E/yWrBtf03jp27GLLJujG4z/JK95pnjjw=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=