feat(meta): enable heartbeat detection.

[zwang28]

What's changed and what's your intention?

This PR enables heartbeat detection.

• Start a loop to delete expired node in ClusterManager in meta node.
• Start a loop to send heartbeat periodically in both frontend and compute node.

TODO:
#856

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)

[codecov]

Codecov Report

Merging #830 (3d1b909) into main (53c479c) will increase coverage by 0.01%.
The diff coverage is 73.36%.

@@             Coverage Diff              @@
##               main     #830      +/-   ##
============================================
+ Coverage     72.18%   72.20%   +0.01%     
  Complexity     2766     2766              
============================================
  Files           930      930              
  Lines         54398    54556     +158     
  Branches       1787     1787              
============================================
+ Hits          39267    39391     +124     
- Misses        14241    14275      +34     
  Partials        890      890              

Flag	Coverage Δ
java	61.22% <ø> (ø)
rust	76.66% <73.36%> (+<0.01%)	⬆️

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

Impacted Files	Coverage Δ
rust/compute/src/lib.rs	0.00% <ø> (ø)
rust/compute/src/server.rs	0.00% <0.00%> (ø)
rust/frontend/src/lib.rs	0.00% <ø> (ø)
rust/meta/src/hummock/mod.rs	61.53% <ø> (ø)
rust/meta/src/lib.rs	0.00% <0.00%> (ø)
rust/meta/src/rpc/server.rs	70.75% <69.56%> (-0.68%)	⬇️
rust/meta/src/cluster/mod.rs	75.38% <71.42%> (-2.50%)	⬇️
rust/meta/src/stream/scheduler.rs	93.15% <83.33%> (-0.97%)	⬇️
rust/meta/src/stream/stream_manager.rs	72.26% <83.33%> (+0.16%)	⬆️
rust/rpc_client/src/meta_client.rs	65.77% <91.66%> (+6.47%)	⬆️
... and 10 more

📣 Codecov can now indicate which changes are the most critical in Pull Requests. Learn more

[yezizp2012]

LGTM