fix(deps): update module github.com/buildkite/bintest to v2.1.0

Author: renovate[bot]

go.mod

@@ -6,7 +6,7 @@ toolchain go1.24.3
 
 require (
 	github.com/bmatcuk/doublestar/v2 v2.0.4
-	github.com/buildkite/bintest v2.0.0+incompatible
+	github.com/buildkite/bintest v2.1.0+incompatible
 	github.com/google/go-cmp v0.7.0
 	github.com/sirupsen/logrus v1.8.1
 	github.com/stretchr/testify v1.10.0