[Cherry-pick 1.11] Automation enhancement: add bump version script; Make version release more automated

[JesseStutler]

What type of PR is this?

Similar to #4521

What this PR does / why we need it:

We need to automatically bump version for release branch, currently all the TAGs in release branch are hard-coded

Which issue(s) this PR fixes:

Cherry-pick from #4372

Special notes for your reviewer:

Does this PR introduce a user-facing change?

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[JesseStutler]

/cc @Monokaix

[gemini-code-assist]

Summary of Changes

Hello @JesseStutler, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

I've cherry-picked changes to enhance our release automation by introducing a dedicated script for bumping versions and streamlining our build process. This aims to make future version releases more automated and less prone to manual errors, particularly for release branches where tags were previously hard-coded. The changes also include improvements to our YAML consistency checks to ensure generated files are always up-to-date and accurate.

Highlights

• Automated Version Bumping Script: I've introduced a new shell script, hack/bump-version.sh, which fully automates the process of updating version numbers across various project files, including the new .release-version file, Helm charts, and go.mod dependencies. This script also handles regenerating development YAMLs, committing changes, and creating a pull request, significantly streamlining our release workflow.
• Dynamic Makefile Configuration: The Makefile and Makefile.def have been refactored to remove hardcoded version tags. This change makes our build and YAML generation processes more dynamic and flexible, allowing them to be driven by the new automation script rather than requiring manual updates for each release.
• Enhanced YAML Consistency Checks: The hack/check-generated-yaml.sh script has been substantially improved. It now includes intelligent logic to compare generated YAML files against their development counterparts, correctly handling different tagging conventions (such as 'latest' versus specific release tags) and ensuring overall consistency of our generated artifacts.

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[gemini-code-assist]

Code Review

This pull request introduces a script to automate version bumping and updates various files to remove hardcoded versions, which is a significant improvement for release management. The new bump-version.sh script is comprehensive, handling file updates, git operations, and PR creation. The check-generated-yaml.sh script is also improved to be more dynamic. I have a few suggestions to make the scripts even more robust and maintainable.