Pull request overview

This PR upgrades the controller-gen tool from version 0.19.0 to 0.20.0, updating all relevant configuration files and dependency manifests managed by the bingo dependency management tool.

• Updated controller-gen from v0.19.0 to v0.20.0
• Updated transitive dependencies including k8s.io packages, golang.org/x modules, and other related libraries
• Updated Go module version from 1.24.6 to 1.25.0

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
.bingo/variables.env	Updated CONTROLLER_GEN environment variable to reference v0.20.0 binary
.bingo/controller-gen.sum	Updated dependency checksums for controller-gen v0.20.0 and its transitive dependencies
.bingo/controller-gen.mod	Updated controller-tools requirement to v0.20.0 and Go version to 1.25.0
.bingo/Variables.mk	Updated CONTROLLER_GEN makefile variable and build target to use v0.20.0 binary

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