chore: upgrade to code.forgejo.org/forgejo/actions-proto (#655)

In replacement of code.gitea.io/actions-proto-go

- https://gitea.com/gitea/actions-proto-def and https://gitea.com/gitea/actions-proto-go were merged into https://code.forgejo.org/forgejo/actions-proto to facilitate maintenance
- the generated go code is different because the package name is different
    - f4285dfc28 shows they compare exactly identical before the name change
    - a3c95cb82f is the generated code right after the name change
- the cascading pull request further shows the protocol is compatible by running [end-to-end actions tests](https://code.forgejo.org/forgejo/end-to-end/src/branch/main/actions) that rely on it, using a runner binary built from [this pull request](https://code.forgejo.org/forgejo/end-to-end/actions/runs/3329/jobs/2#jobstep-4-640) `0296d988d65e66b8d8a7951d0d7d7f8c6cf78b44` matches `v0.0.1+576-g0296d98`
    - `time="2025-07-03T12:53:50Z" level=info msg="runner: runner, with version: v0.0.1+576-g0296d98, with labels: [docker], declared successfully" func="[func6]" file="[daemon.go:108]"`

A similar pull request will be sent to Forgejo once this one is merged (less risky environment)

Reviewed-on: https://code.forgejo.org/forgejo/runner/pulls/655
Reviewed-by: Michael Kriese <michael.kriese@gmx.de>
Co-authored-by: Earl Warren <contact@earl-warren.org>
Co-committed-by: Earl Warren <contact@earl-warren.org>

internal/pkg/report/reporter_test.go

@@ -9,7 +9,7 @@ import (
 	"testing"
 	"time"
 
-	runnerv1 "code.gitea.io/actions-proto-go/runner/v1"
+	runnerv1 "code.forgejo.org/forgejo/actions-proto/runner/v1"
 	connect_go "connectrpc.com/connect"
 	log "github.com/sirupsen/logrus"
 	"github.com/stretchr/testify/assert"