build(deps): bump cuelang.org/go from 0.15.0 to 0.15.1 (#1217)

Bumps cuelang.org/go from 0.15.0 to 0.15.1.

---
updated-dependencies:
- dependency-name: cuelang.org/go
  dependency-version: 0.15.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

go.mod

@@ -3,7 +3,7 @@ module github.com/open-policy-agent/conftest
 go 1.25.3
 
 require (
-	cuelang.org/go v0.15.0
+	cuelang.org/go v0.15.1
 	github.com/BurntSushi/toml v1.5.0
 	github.com/CycloneDX/cyclonedx-go v0.9.3
 	github.com/KeisukeYamashita/go-vcl v0.4.0

go.sum

@@ -23,8 +23,8 @@ cloud.google.com/go/trace v1.11.2 h1:4ZmaBdL8Ng/ajrgKqY5jfvzqMXbrDcBsUGXOT9aqTtI
 cloud.google.com/go/trace v1.11.2/go.mod h1:bn7OwXd4pd5rFuAnTrzBuoZ4ax2XQeG3qNgYmfCy0Io=
 cuelabs.dev/go/oci/ociregistry v0.0.0-20250722084951-074d06050084 h1:4k1yAtPvZJZQTu8DRY8muBo0LHv6TqtrE0AO5n6IPYs=
 cuelabs.dev/go/oci/ociregistry v0.0.0-20250722084951-074d06050084/go.mod h1:4WWeZNxUO1vRoZWAHIG0KZOd6dA25ypyWuwD3ti0Tdc=
-cuelang.org/go v0.15.0 h1:0jlWNxLp1In6dWJtywTXei7w0cqfHSTiCk/6Z+FUvxI=
-cuelang.org/go v0.15.0/go.mod h1:NYw6n4akZcTjA7QQwJ1/gqWrrhsN4aZwhcAL0jv9rZE=
+cuelang.org/go v0.15.1 h1:MRnjc/KJE+K42rnJ3a+425f1jqXeOOgq9SK4tYRTtWw=
+cuelang.org/go v0.15.1/go.mod h1:NYw6n4akZcTjA7QQwJ1/gqWrrhsN4aZwhcAL0jv9rZE=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/BurntSushi/toml v1.5.0 h1:W5quZX/G/csjUnuI8SUYlsHs9M38FC7znL0lIO+DvMg=
 github.com/BurntSushi/toml v1.5.0/go.mod h1:ukJfTF/6rtPPRCnwkur4qwRxa8vTRFBF0uk2lLoLwho=