feat(main): add update version scripts

[cuisongliu]

This pull request includes updates to the README.md and gen/version/gen.go files, introducing new scripts to automate version updates and streamline the installation process. The most important changes include adding markers in the README.md for automated content replacement, renaming variables for clarity in gen/version/gen.go, and adding new scripts for updating the README.md based on version tags.

Documentation Updates:

• README.md: Added markers for automated content replacement to streamline the process of updating installation instructions.

Code Enhancements:

• gen/version/gen.go: Renamed variables cmd1 and cmd2 to cmdUpgradeImageName and cmdUpgradeChartVersion for better clarity. Added commands to update the README.md using new scripts. [1] [2]

New Scripts:

• scripts/release_tag.sh: Added a script to update the README.md with the latest version of the AutoMQ operator installation instructions.
• scripts/release_tag_sealos.sh: Added a script to update the README.md with the latest version of the AutoMQ operator installation instructions for Sealos.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 27.74%. Comparing base (4a72280) to head (cf97604).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #54   +/-   ##
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  Coverage   27.74%   27.74%           
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  Files           4        4           
  Lines         310      310           
=======================================
  Hits           86       86           
  Misses        203      203           
  Partials       21       21           

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