fix: improve actions status icons and texts (#37206)

Action runs, jobs and steps have 8 statuses but the UI only showed 5
(from the commit status api) for the latter two. Align all 8 to GitHub
as closely as possible:

  - waiting — `octicon-circle` (hollow circle), gray
  - blocked — `octicon-blocked` (slashed circle), yellow
  - running — `gitea-running` (rotating spinner), yellow
  - cancelled — `octicon-stop` (gray), was `octicon-x` (red)

Descriptions also aligned with GitHub:

  - "Has started running" → "In progress"
  - "Has been cancelled" → "Cancelled after {dur}"
  - "Has been skipped" → "Skipped"

Fixes: https://github.com/go-gitea/gitea/issues/32228

---------

Signed-off-by: wxiaoguang <wxiaoguang@gmail.com>
Signed-off-by: silverwind <me@silverwind.io>
Co-authored-by: Claude (Opus 4.6) <noreply@anthropic.com>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: Nicolas <bircni@icloud.com>

routers/api/actions/artifactsv4.go

@@ -104,7 +104,6 @@ import (
 
 	actions_model "code.gitea.io/gitea/models/actions"
 	"code.gitea.io/gitea/models/db"
-	"code.gitea.io/gitea/modules/actions"
 	"code.gitea.io/gitea/modules/httplib"
 	"code.gitea.io/gitea/modules/log"
 	"code.gitea.io/gitea/modules/optional"
@@ -112,6 +111,7 @@ import (
 	"code.gitea.io/gitea/modules/storage"
 	"code.gitea.io/gitea/modules/util"
 	"code.gitea.io/gitea/modules/web"
+	"code.gitea.io/gitea/services/actions"
 	"code.gitea.io/gitea/services/context"
 
 	"google.golang.org/protobuf/encoding/protojson"