chore: able to config axum timeout in toml (#463)

[dongxuwang]

I hereby agree to the terms of the GreptimeDB CLA

What's changed and what's your intention?

• Use toml configured timeout instead of hard code
• Add one more timeout together with http_addr to build a HttpOptions struct

Checklist

• [x] I have written the necessary rustdoc comments.
• [x] I have added the necessary unit tests and integration tests.

Refer to a related PR or issue link (optional)

(#463)

[codecov[bot]]

Codecov Report

Merging #579 (f4c104b) into develop (7b37e99) will increase coverage by 0.01%. The diff coverage is 87.75%.

@@             Coverage Diff             @@
##           develop     #579      +/-   ##
===========================================
+ Coverage    86.28%   86.30%   +0.01%     
===========================================
  Files          402      402              
  Lines        50973    51058      +85     
===========================================
+ Hits         43983    44066      +83     
- Misses        6990     6992       +2     

Flag	Coverage Δ
rust	86.30% <87.75%> (+0.01%)	:arrow_up:

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

Impacted Files	Coverage Δ
src/frontend/src/server.rs	0.00% <0.00%> (ø)
src/cmd/src/standalone.rs	39.45% <64.28%> (+1.74%)	:arrow_up:
src/servers/src/http.rs	82.08% <91.48%> (+1.33%)	:arrow_up:
src/cmd/src/frontend.rs	73.46% <100.00%> (+7.95%)	:arrow_up:
src/frontend/src/frontend.rs	51.42% <100.00%> (+2.85%)	:arrow_up:
src/servers/src/error.rs	35.13% <0.00%> (+8.10%)	:arrow_up:

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[evenyag]

Thanks, @dongxuwang ! I have tracked this PR in issue #463 , though GitHub only allows adding issue participants to assignees. I'd review this in the next few days.