Take grpc to 1.83.2 across the nine modules that carry it

GHSA-2v4p-qf9q-27wj is a panic in gRPC-Go's xDS routing interceptor: a
request arriving with neither `:authority` nor `Host` indexes an empty
slice, the per-RPC goroutine does not recover, and the process dies.
High, and nine alerts, because nine go.mod files pin the same version --
eight directly, terraform indirectly.

Nothing here was reachable. The interceptor is installed by
`xds.NewGRPCServer`, which this repo never calls: the one production
server is `grpc.NewServer(grpc.Creds(...))` in ingest/internal/grpcserver
and the only other is a plain one in a searchclient test. That is also
why security-scan has been green throughout -- govulncheck reports on
reachability and found nothing on 1.83.1, while Dependabot reports on
version ranges and found nine. Both were right.

Taken anyway: it is a patch release, and the next advisory in this
dependency may well land somewhere we do reach.

`go mod tidy` carried the indirect requirements grpc 1.83.2 asks for --
x/net, x/text, x/sys and friends. No CI job builds or tests Go here, so
all nine modules were built locally and api, ingest and enterprise
tested with -count=1, since a cached pass would not have exercised the
new version.

The dependabot.yml is the other half. There was no config, so nothing
opened a PR against any of this. Go majors stay out of the group, being
import path changes rather than bumps.

api/go.mod

@@ -8,7 +8,7 @@ require (
 	github.com/google/uuid v1.6.0
 	github.com/jackc/pgx/v5 v5.10.0
 	golang.org/x/crypto v0.55.0
-	google.golang.org/grpc v1.83.1
+	google.golang.org/grpc v1.83.2
 )
 
 replace github.com/cairnobs/cairnobs/proto => ../proto
@@ -29,7 +29,7 @@ require (
 	github.com/shopspring/decimal v1.4.0 // indirect
 	go.opentelemetry.io/otel v1.44.0 // indirect
 	go.opentelemetry.io/otel/trace v1.44.0 // indirect
-	golang.org/x/net v0.57.0 // indirect
+	golang.org/x/net v0.58.0 // indirect
 	golang.org/x/sync v0.22.0 // indirect
 	golang.org/x/sys v0.47.0 // indirect
 	golang.org/x/text v0.41.0 // indirect

api/go.sum

@@ -65,8 +65,8 @@ go.opentelemetry.io/otel/trace v1.44.0 h1:jxF5CsGYCe74MCRx2X4g7WsY/VBKRqqpNvXlX/
 go.opentelemetry.io/otel/trace v1.44.0/go.mod h1:oLl1jrMQAVo6v3GAggN+1VH9VIz9iUSvW53sW1Q8PIE=
 golang.org/x/crypto v0.55.0 h1:+KWHjbgOaAQ66dh/YlkZKHlz9ZUlq61AFirAR9ntP8M=
 golang.org/x/crypto v0.55.0/go.mod h1:uq0V9dE/fzQuJtbnL+2EhWOE63vo164FY8xqEnV9xis=
-golang.org/x/net v0.57.0 h1:K5+3DljvIuDG9/Jv9rvyMywYNFCQ9RSUY6OOTTkT+tE=
-golang.org/x/net v0.57.0/go.mod h1:KpXc8iv+r3XplLAG/f7Jsf9RPszJzdR0f58q9vGOuEU=
+golang.org/x/net v0.58.0 h1:ynWG7rqYi4ccpTEuPZ2QGWHktVEM9DMCj9yzDE0Q7To=
+golang.org/x/net v0.58.0/go.mod h1:YwCddHnFlT7eLQqVprV19OnhLGtc5xOKgE0RyqgfWAU=
 golang.org/x/sync v0.22.0 h1:SZjpbeLmrCk4xhRSZFNZW5gFUeCeFgjekvI/+gfScek=
 golang.org/x/sync v0.22.0/go.mod h1:9xrNwdLfx4jkKbNva9FpL6vEN7evnE43NNNJQ2LF3+0=
 golang.org/x/sys v0.47.0 h1:o7XGOvZQCADBQQ4Y7VNq2dRWQR7JmOUW8Kxx4ZsNgWs=
@@ -77,8 +77,8 @@ gonum.org/v1/gonum v0.17.0 h1:VbpOemQlsSMrYmn7T2OUvQ4dqxQXU+ouZFQsZOx50z4=
 gonum.org/v1/gonum v0.17.0/go.mod h1:El3tOrEuMpv2UdMrbNlKEh9vd86bmQ6vqIcDwxEOc1E=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20260526163538-3dc84a4a5aaa h1:mZHHdPZl0dbGHCflZgAq/Q468DWVFcU2whhB2KAo8fk=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20260526163538-3dc84a4a5aaa/go.mod h1:4Hqkh8ycfw05ld/3BWL7rJOSfebL2Q+DVDeRgYgxUU8=
-google.golang.org/grpc v1.83.1 h1:HIO0+BEtBP6soyqvqC8sNUjZ7bTs+0hFQuFF+RAy++Y=
-google.golang.org/grpc v1.83.1/go.mod h1:kDyl6SKsiHKt0uylY5gtn5cEjkrIOhQOGDgIc4JGwzQ=
+google.golang.org/grpc v1.83.2 h1:EManeRomTObA0BU7I8vXgg/78uE5MJ9M8B39EX2WscU=
+google.golang.org/grpc v1.83.2/go.mod h1:YPI1hK3kDked6iHvgX3tR0y+nX/qpMFKhPgFsokw1S8=
 google.golang.org/protobuf v1.36.12 h1:pJOKDDOyeXErUroCihFAd5LQuwXBSpVnKGrj5o/fwxc=
 google.golang.org/protobuf v1.36.12/go.mod h1:HTf+CrKn2C3g5S8VImy6tdcUvCska2kB7j23XfzDpco=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=