chore(deps): bump github.com/speakeasy-api/openapi from 1.7.3 to 1.12.8

Bumps [github.com/speakeasy-api/openapi](https://github.com/speakeasy-api/openapi) from 1.7.3 to 1.12.8.
- [Release notes](https://github.com/speakeasy-api/openapi/releases)
- [Commits](speakeasy-api/openapi@v1.7.3...v1.12.8)

---
updated-dependencies:
- dependency-name: github.com/speakeasy-api/openapi
  dependency-version: 1.12.8
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

go.mod

@@ -47,7 +47,7 @@ require (
 	github.com/samber/slog-multi v1.6.0
 	github.com/santhosh-tekuri/jsonschema/v6 v6.0.2
 	github.com/sourcegraph/conc v0.3.0
-	github.com/speakeasy-api/openapi v1.7.3
+	github.com/speakeasy-api/openapi v1.13.1
 	github.com/standard-webhooks/standard-webhooks/libraries v0.0.0-20250711233419-a173a6c0125c
 	github.com/stretchr/testify v1.11.1
 	github.com/superfly/fly-go v0.1.71

go.sum

@@ -564,8 +564,8 @@ github.com/sourcegraph/conc v0.3.0 h1:OQTbbt6P72L20UqAkXXuLOj79LfEanQ+YQFNpLA9yS
 github.com/sourcegraph/conc v0.3.0/go.mod h1:Sdozi7LEKbFPqYX2/J+iBAM6HpqSLTASQIKqDmF7Mt0=
 github.com/speakeasy-api/jsonpath v0.6.2 h1:Mys71yd6u8kuowNCR0gCVPlVAHCmKtoGXYoAtcEbqXQ=
 github.com/speakeasy-api/jsonpath v0.6.2/go.mod h1:ymb2iSkyOycmzKwbEAYPJV/yi2rSmvBCLZJcyD+VVWw=
-github.com/speakeasy-api/openapi v1.7.3 h1:QM9VglcsxRPH19Xr47nYRtDsKOlczCdRRxPYa0pAGz0=
-github.com/speakeasy-api/openapi v1.7.3/go.mod h1:fy+CvRcKj+HDU0QNdnyG6UkfJOEjhqCuNC7o4AtLPAk=
+github.com/speakeasy-api/openapi v1.13.1 h1:sIje3+Ok3PL0d+3D3lrUjrhg97mI0mGV6zvkgVRwTPc=
+github.com/speakeasy-api/openapi v1.13.1/go.mod h1:8jSvfd0M8Ku2cy0pOa/1ZxcsisFN+wE0S3orTnCu1Xo=
 github.com/spf13/cobra v1.10.1 h1:lJeBwCfmrnXthfAupyUTzJ/J4Nc1RsHC/mSRU2dll/s=
 github.com/spf13/cobra v1.10.1/go.mod h1:7SmJGaTHFVBY0jW4NXGluQoLvhqFQM+6XSKD+P4XaB0=
 github.com/spf13/pflag v1.0.9 h1:9exaQaMOCwffKiiiYk6/BndUBv+iRViNW+4lEMi0PvY=