feat(privatelink): add tags to the endpoint in CREATE CONNECTION command

[WillyKidd]

I hereby agree to the terms of the RisingWave Labs, Inc. Contributor License Agreement.

What's changed and what's your intention?

• add tags to the vpc endpoint created in create connection for more convenient resource management for the cloud team
• an optional tags parameter in the with clause in create connection, with the format 'key1=val1,key2=val2...'
• close Connection: Add a tags to the CREATE CONNECTION command #10451

example usage:
in risingwave...

in aws endpoint panel..

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.)

Documentation

• My PR contains user-facing changes.

Types of user-facing changes

• SQL commands, functions, and operators

Release note

Allow user to tag the created vpc endpoints when creating a privatelink connection using risingwave.

• Using SQL: an optional tags property in the with clause in CREATE CONNECTION
• Using environment variable RW_PRIVATELINK_ENDPOINT_DEFAULT_TAGS (considered to be default tags)

Both should have the syntax key1=val1,key2=val2...
If both methods are used, the tags specified in the environment variable will be appended to the ones specified in the with clause in SQL.

[StrikeW]

Rest lgtm. As discussed in the wg, add a optional environment variable on Meta as the default tag to add to each connection.

[StrikeW]

Rebase your branch to fix the CI and please add some release notes for the PR. @WillyKidd

[codecov]

Codecov Report

Merging #10582 (c76f080) into main (29edca4) will decrease coverage by 0.03%.
The diff coverage is 1.49%.

@@            Coverage Diff             @@
##             main   #10582      +/-   ##
==========================================
- Coverage   70.26%   70.24%   -0.03%     
==========================================
  Files        1274     1274              
  Lines      219116   219182      +66     
==========================================
  Hits       153967   153967              
- Misses      65149    65215      +66     

Flag	Coverage Δ
rust	70.24% <1.49%> (-0.03%)	⬇️

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

Impacted Files	Coverage Δ
src/frontend/src/handler/create_connection.rs	0.00% <0.00%> (ø)
src/meta/src/lib.rs	0.00% <0.00%> (ø)
src/meta/src/rpc/cloud_provider.rs	0.00% <0.00%> (ø)
src/meta/src/rpc/service/ddl_service.rs	0.00% <0.00%> (ø)
src/meta/src/manager/env.rs	70.13% <100.00%> (+0.20%)	⬆️

... and 3 files with indirect coverage changes

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[StrikeW]

Rest lgtm

[StrikeW]

This pr is required from cloud team for GA. Do we need to pick it to 0.19-rc? @lmatz