Update dependency go to v1.25.1 (#2722)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

internal/tools/go.mod

@@ -2,7 +2,7 @@ module github.com/open-telemetry/opentelemetry-specification/internal/tools
 
 go 1.23.0
 
-toolchain go1.25.0
+toolchain go1.25.1
 
 require (
 	github.com/client9/misspell v0.3.4