chore(deps): update dependency go to v1.25.4 (#80)

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

Author: renovate[bot]

go.mod

@@ -1,6 +1,6 @@
 module github.com/openmcp-project/cluster-provider-kind
 
-go 1.25.1
+go 1.25.4
 
 godebug default=go1.23