Bump fastify/github-action-merge-dependabot to v3.15.0

[Keboo]

Updates the merge dependabot action to resolve build issues identified in the workflow.

[github-actions]

Summary - Code Coverage

Summary

Generated on:	07/18/2026 - 17:53:18
Coverage date:	07/18/2026 - 17:53:10 - 07/18/2026 - 17:53:15
Parser:	MultiReport (2x Cobertura)
Assemblies:	2
Classes:	17
Files:	12
Line coverage:	71.2% (495 of 695)
Covered lines:	495
Uncovered lines:	200
Coverable lines:	695
Total lines:	1246
Branch coverage:	42.1% (97 of 230)
Covered branches:	97
Total branches:	230
Method coverage:	Feature is only available for sponsors
Tag:	1298_29654740379

Coverage

PointerStar.Server - 68.1%

Name	Line	Branch
PointerStar.Server	68.1%	43.3%
AspNetCoreGeneratedDocument.Pages_Error	0%	0%
PointerStar.Server.Controllers.ClientConfigController	100%	75%
PointerStar.Server.Controllers.GiphyController	0%	0%
PointerStar.Server.Controllers.GiphyItem	0%
PointerStar.Server.Controllers.GiphySearchResponse	0%
PointerStar.Server.Controllers.PaginationInfo	0%
PointerStar.Server.Controllers.RoomController	100%
PointerStar.Server.Hubs.RoomHub	0%	0%
PointerStar.Server.Pages.ErrorModel	0%	0%
PointerStar.Server.Room.InMemoryRoomManager	97.2%	79.8%
Program	83.6%	50%

PointerStar.Shared - 91.3%

Name	Line	Branch
PointerStar.Shared	91.3%	0%
PointerStar.Shared.Role	50%	0%
PointerStar.Shared.RoomOptions	100%
PointerStar.Shared.RoomState	100%
PointerStar.Shared.User	100%
PointerStar.Shared.UserOptions	100%
PointerStar.Shared.VotingPresets	98.1%