chore: add missing license headers

[TennyZhuang]

Signed-off-by: TennyZhuang [email protected]

What's changed and what's your intention?

PLEASE DO NOT LEAVE THIS EMPTY !!!

Please explain IN DETAIL what the changes are in this PR and why they are needed:

Add missing headers.

Will fix the checker action in the next PR.

Checklist

• I have written necessary docs and comments
• I have added necessary unit tests and integration tests

Refer to a related PR or issue link (optional)

[skyzh]

please install licenseye using the latest hash, so as to use the latest version (guess some goproxy has cache). The current version you are using will have an extra line of //, causing rust-analyzer to insert auto imports to a wrong place.

[TennyZhuang]

I've not set the GOPROXY, and install from latest.

github.com/apache/skywalking-eyes/cmd/license-eye@latest

[codecov]

Codecov Report

Merging #1777 (2401b86) into main (d0a2928) will decrease coverage by 0.00%.
The diff coverage is n/a.

❗ Current head 2401b86 differs from pull request most recent head 87450eb. Consider uploading reports for the commit 87450eb to get more accurate results

@@            Coverage Diff             @@
##             main    #1777      +/-   ##
==========================================
- Coverage   71.29%   71.29%   -0.01%     
==========================================
  Files         605      605              
  Lines       78599    78599              
==========================================
- Hits        56041    56039       -2     
- Misses      22558    22560       +2     

Flag	Coverage Δ
rust	71.29% <ø> (-0.01%)	⬇️

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

Impacted Files	Coverage Δ
src/common/src/alloc.rs	100.00% <ø> (ø)
src/common/src/buffer/bitmap.rs	87.64% <ø> (ø)
src/common/src/buffer/buffer_.rs	78.43% <ø> (ø)
src/frontend/src/binder/expr/subquery.rs	83.33% <ø> (ø)
src/frontend/src/binder/window_table_function.rs	68.60% <ø> (ø)
src/frontend/src/handler/set.rs	0.00% <ø> (ø)
src/frontend/src/meta_client.rs	0.00% <ø> (ø)
src/frontend/src/scheduler/execution/query.rs	0.00% <ø> (ø)
src/frontend/src/scheduler/execution/stage.rs	0.00% <ø> (ø)
src/frontend/src/scheduler/query_manager.rs	7.44% <ø> (ø)
... and 9 more

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[skyzh]

I've not set the GOPROXY, and install from latest.

github.com/apache/skywalking-eyes/cmd/license-eye@latest

Use git hash instead of latest 🤣