ci(coverage): use PAT for checkout step

[didasy]

Checkout with default GITHUB_TOKEN causes badge push to skip CI. PAT on checkout restores push-triggered workflow runs.

• Add BADGE_BYPASS_PAT token to actions/checkout

[github-actions]

⬇️ Go test coverage decreased from 79.7% to 79.7% compared to 49305a3 (4 ignored files)

Updated Package Coverages:

# Package Name                                                     |  Prior |    New
- github.com/simpwf/workflow-engine/internal/workflow/statusupdate |  82.1% |  79.8%

View coverage for all packages

# Package Name                                                       | Coverage
+ github.com/simpwf/workflow-engine/internal/workflow/engine         |    78.2%
+ github.com/simpwf/workflow-engine/internal/workflow/executor       |    86.9%
+ github.com/simpwf/workflow-engine/internal/workflow/handler        |    92.6%
+ github.com/simpwf/workflow-engine/internal/workflow/inputtransport |    93.5%
+ github.com/simpwf/workflow-engine/internal/workflow/model          |    89.6%
+ github.com/simpwf/workflow-engine/internal/workflow/repository     |    75.8%
+ github.com/simpwf/workflow-engine/internal/workflow/service        |    80.7%
+ github.com/simpwf/workflow-engine/internal/workflow/statusupdate   |    79.8%
+ github.com/simpwf/workflow-engine/internal/workflow/transport      |    11.6%
+ github.com/simpwf/workflow-engine/pkg/configuration                |    90.8%
+ github.com/simpwf/workflow-engine/pkg/contextdiff                  |    56.0%
+ github.com/simpwf/workflow-engine/pkg/contextpath                  |    82.2%
+ github.com/simpwf/workflow-engine/pkg/database                     |    82.4%
+ github.com/simpwf/workflow-engine/pkg/ids                          |    87.5%
+ github.com/simpwf/workflow-engine/pkg/jsfunc                       |    75.0%