build(deps): Bump github.com/score-spec/score-go from 1.8.5 to 1.9.1

Bumps [github.com/score-spec/score-go](https://github.com/score-spec/score-go) from 1.8.5 to 1.9.1.
- [Release notes](https://github.com/score-spec/score-go/releases)
- [Commits](score-spec/score-go@v1.8.5...v1.9.1)

---
updated-dependencies:
- dependency-name: github.com/score-spec/score-go
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

go.mod

@@ -1,10 +1,9 @@
 module github.com/score-spec/score-implementation-sample
 
 go 1.23.4
-
 require (
 	github.com/imdario/mergo v1.0.1
-	github.com/score-spec/score-go v1.8.5
+	github.com/score-spec/score-go v1.9.1
 	github.com/spf13/cobra v1.8.1
 	github.com/spf13/pflag v1.0.5
 	github.com/stretchr/testify v1.10.0

go.sum

@@ -26,8 +26,8 @@ github.com/rogpeppe/go-internal v1.12.0/go.mod h1:E+RYuTGaKKdloAfM02xzb0FW3Paa99
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/santhosh-tekuri/jsonschema/v5 v5.3.1 h1:lZUw3E0/J3roVtGQ+SCrUrg3ON6NgVqpn3+iol9aGu4=
 github.com/santhosh-tekuri/jsonschema/v5 v5.3.1/go.mod h1:uToXkOrWAZ6/Oc07xWQrPOhJotwFIyu2bBVN41fcDUY=
-github.com/score-spec/score-go v1.8.5 h1:ssCvGojcM+cs+GK7/GuE2oA5iDoCqcAofL/Usce4UFI=
-github.com/score-spec/score-go v1.8.5/go.mod h1:rW7jKWPPqubDzHmIlE/r/x5z64Q4eMdjKCxZ8XB+/LM=
+github.com/score-spec/score-go v1.9.1 h1:8C397Lkn8TMTKC3MldIF8zW4RAnw3dQ1S7+oZ///K9s=
+github.com/score-spec/score-go v1.9.1/go.mod h1:SetCPqAPdIdvgEO2ITHMhahaTsMf7ybYvelrNuNct4Y=
 github.com/spf13/cobra v1.8.1 h1:e5/vxKd/rZsfSJMUX1agtjeTDf+qv1/JdBF8gg5k9ZM=
 github.com/spf13/cobra v1.8.1/go.mod h1:wHxEcudfqmLYa8iTfL+OuZPbBZkmvliBWKIezN3kD9Y=
 github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=