test(regress): enable jsonb

[xiangjinwu]

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What's changed and what's your intention?

Enable regress tests for jsonb:

• Unsupported functions are commented out. Tracking: jsonb operations #7714
• create temp table is replaced by create table + drop table.
• Updated ToText to use a customer Formatter to match PostgreSQL textual output.
• For chained casts (v::T::U), specify output alias because our implicit name is T but PG uses U. This issue is not related to jsonb and we want to focus on testing jsonb casts here. frontend: Derive output column names #3812 (comment)

Checklist For Contributors

• I have written necessary rustdoc comments
• I have added necessary unit tests and integration tests
• All checks passed in ./risedev check (or alias, ./risedev c)

Documentation

• My PR DOES NOT contain user-facing changes.

[codecov]

Codecov Report

Merging #8181 (7a11033) into main (7f237d7) will decrease coverage by 0.03%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##             main    #8181      +/-   ##
==========================================
- Coverage   71.85%   71.82%   -0.03%     
==========================================
  Files        1129     1129              
  Lines      181263   181303      +40     
==========================================
- Hits       130239   130225      -14     
- Misses      51024    51078      +54     

Flag	Coverage Δ
rust	71.82% <0.00%> (-0.03%)	⬇️

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

Impacted Files	Coverage Δ
src/common/src/array/jsonb_array.rs	16.83% <0.00%> (-2.69%)	⬇️
src/batch/src/executor/group_top_n.rs	68.23% <0.00%> (-6.48%)	⬇️
...torage/src/hummock/local_version/pinned_version.rs	88.75% <0.00%> (-0.63%)	⬇️
src/meta/src/hummock/mock_hummock_meta_client.rs	65.46% <0.00%> (-0.52%)	⬇️
src/common/src/cache.rs	97.15% <0.00%> (-0.11%)	⬇️

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