Update Golang to 1.26.7

[tbavelier]

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• Agent: vX.Y.Z
• Cluster Agent: vX.Y.Z

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• PR has at least one valid label: bug, enhancement, refactoring, documentation, tooling, and/or dependencies
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[dd-octo-sts]

The backport to v1.30 failed:

The process '/usr/bin/git' failed with exit code 1

To backport manually, run these commands in your terminal:

# Fetch latest updates from GitHub
git fetch
# Create a new working tree
git worktree add .worktrees/backport-v1.30 v1.30
# Navigate to the new working tree
cd .worktrees/backport-v1.30
# Create a new branch
git switch --create backport-3392-to-v1.30
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 ae9eacd4b388aad8e2f46f5749e5fd32e8a88b78
# Push it to GitHub
git push --set-upstream origin backport-3392-to-v1.30
# Go back to the original working tree
cd ../..
# Delete the working tree
git worktree remove .worktrees/backport-v1.30

Then, create a pull request where the base branch is v1.30 and the compare/head branch is backport-3392-to-v1.30.