fix: failed to reconrigure operation (#674)

[sophon-zt]

1. [BUG] camellia cluster config error metadata.labels Invalid value must be no more than 63 characters #6746
2. [BUG] ob reconfigure invalid error: metadata.labels: Invalid value: "__easy_memory_reserved_percentage" #6765

[sophon-zt]

/approve

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 66.58%. Comparing base (20d29fa) to head (09cf788).
Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6766      +/-   ##
==========================================
+ Coverage   66.52%   66.58%   +0.05%     
==========================================
  Files         308      308              
  Lines       36859    36864       +5     
==========================================
+ Hits        24521    24545      +24     
+ Misses      10251    10237      -14     
+ Partials     2087     2082       -5     

Flag	Coverage Δ
unittests	66.58% <100.00%> (+0.05%)	⬆️

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[ahjing99]

/cherry-pick release-0.8

[github-actions]

🤖 says: Error cherry-picking.

Auto-merging controllers/apps/operations/reconfigure_util.go
CONFLICT (content): Merge conflict in controllers/apps/operations/reconfigure_util.go
Auto-merging pkg/configuration/core/config_util.go
error: could not apply ae0adbe... fix: failed to reconrigure operation (#674) (#6766)
hint: After resolving the conflicts, mark them with
hint: "git add/rm ", then run
hint: "git cherry-pick --continue".
hint: You can instead skip this commit with "git cherry-pick --skip".
hint: To abort and get back to the state before "git cherry-pick",
hint: run "git cherry-pick --abort".

[github-actions]

🤖 says: ‼️ cherry pick action failed.
See: https://github.com/apecloud/kubeblocks/actions/runs/8184337931

[sophon-zt]

/cherry-pick release-0.8

[github-actions]

🤖 says: cherry pick action finished successfully 🎉!
See: https://github.com/apecloud/kubeblocks/actions/runs/8184602099