fix: disable Renovate gomod updates for ci/ to prevent artifact failures (#370)

## What

PR #356 (Renovate) was blocked with `renovate/artifacts` — \"Artifact file update failure\" — because `ci/go.sum` could not be updated automatically.

**Root cause**: `ci/main.go` imports `dagger/ci/internal/dagger` (generated by `dagger develop`, not committed to the repo). Without that generated package present, `go mod tidy` cannot resolve the full dependency graph, so Renovate's artifact update step always fails.

The actual OpenTelemetry version bump from PR #356 was already applied manually in PR #363.

## Fix

Adds a `packageRule` to `renovate.json` to disable the `gomod` manager for `ci/**`. Renovate will no longer open failing PRs for Go dependencies in the Dagger CI module; updates to `ci/go.mod` and `ci/go.sum` must be done manually (using `dagger develop && go mod tidy` inside `ci/`).

## Verification

- `renovate.json` validates against the Renovate schema.
- No Go or Drift schema changes; `task check` is unaffected.

Closes #368

Co-authored-by: Thomas SharedInbox <sharedinbox@thomas-guettler.de>
Co-authored-by: guettli <guettli@noreply.codeberg.org>
Reviewed-on: https://codeberg.org/guettli/sharedinbox/pulls/370

ci/go.mod

@@ -43,11 +43,3 @@ require (
 	google.golang.org/grpc v1.80.0 // indirect
 	google.golang.org/protobuf v1.36.11 // indirect
 )
-
-replace go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc => go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc v0.20.0
-
-replace go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp => go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp v0.20.0
-
-replace go.opentelemetry.io/otel/log => go.opentelemetry.io/otel/log v0.20.0
-
-replace go.opentelemetry.io/otel/sdk/log => go.opentelemetry.io/otel/sdk/log v0.20.0

renovate.json

@@ -11,6 +11,11 @@
     {
       "matchUpdateTypes": ["minor", "patch", "pin", "digest", "lockFileMaintenance"],
       "addLabels": ["automerge"]
+    },
+    {
+      "matchManagers": ["gomod"],
+      "matchFileNames": ["ci/**"],
+      "enabled": false
     }
   ],
   "customManagers": [