feat: use bit flags for user privilege check

[yezizp2012]

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What's changed and what's your intention?

Resolve #7097 .

Checklist

• I have written necessary rustdoc comments
• I have added necessary unit tests and integration tests
• I have added fuzzing tests or opened an issue to track them. (Optional, recommended for new SQL features Sqlsmith: Sql feature generation #7934).
• My PR contains breaking changes. (If it deprecates some features, please create a tracking issue to remove them in the future).
• All checks passed in ./risedev check (or alias, ./risedev c)
• My PR changes performance-critical code. (Please run macro/micro-benchmarks and show the results.)

• My PR contains critical fixes that are necessary to be merged into the latest release. (Please check out the details)

Documentation

• My PR needs documentation updates. (Please use the Release note section below to summarize the impact on users)

Release note

If this PR includes changes that directly affect users or other significant modifications relevant to the community, kindly draft a release note to provide a concise summary of these changes. Please prioritize highlighting the impact these changes will have on users.

[gitguardian]

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GitGuardian id	Secret	Commit	Filename
7648795	Generic CLI Secret	4483f42	integration_tests/iceberg-cdc/run_test.sh	View secret

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[codecov]

Codecov Report

Merging #13033 (f0de95e) into main (7f82929) will decrease coverage by 0.01%.
The diff coverage is 82.37%.

@@            Coverage Diff             @@
##             main   #13033      +/-   ##
==========================================
- Coverage   68.56%   68.55%   -0.01%     
==========================================
  Files        1496     1498       +2     
  Lines      251502   251606     +104     
==========================================
+ Hits       172438   172497      +59     
- Misses      79064    79109      +45     

Flag	Coverage Δ
rust	68.55% <82.37%> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
src/frontend/src/handler/alter_user.rs	59.39% <100.00%> (ø)
src/frontend/src/handler/create_index.rs	88.45% <100.00%> (ø)
src/frontend/src/handler/create_mv.rs	93.72% <100.00%> (ø)
src/frontend/src/handler/create_schema.rs	80.35% <100.00%> (ø)
src/frontend/src/handler/create_user.rs	90.57% <100.00%> (ø)
src/frontend/src/handler/drop_user.rs	86.04% <100.00%> (ø)
src/frontend/src/handler/handle_privilege.rs	71.79% <100.00%> (ø)
src/frontend/src/test_utils.rs	71.15% <80.00%> (-1.04%)	⬇️
src/frontend/src/catalog/system_catalog/mod.rs	94.61% <85.71%> (+1.36%)	⬆️
src/frontend/src/handler/privilege.rs	80.89% <89.47%> (-0.73%)	⬇️
... and 5 more

... and 9 files with indirect coverage changes

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[shanicky]

LGTM

[xxchan]

cargo.lcok