feat(net): fix bug of getting head block concurrently

[317787106]

What does this PR do?

• fix bug of getting head block concurrently in construct ChainInventoryMessage

Why are these changes required?

This PR has been tested by:

• Unit Tests
• Manual Testing

Follow up

Extra details

[codecov-commenter]

Codecov Report

Merging #5532 (e352152) into release_v4.7.3 (9842b3f) will increase coverage by 1.02%.
Report is 19 commits behind head on release_v4.7.3.
The diff coverage is 74.50%.

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@@                 Coverage Diff                  @@
##             release_v4.7.3    #5532      +/-   ##
====================================================
+ Coverage             64.99%   66.02%   +1.02%     
- Complexity            10020    10152     +132     
====================================================
  Files                   894      894              
  Lines                 53816    53847      +31     
  Branches               5926     5929       +3     
====================================================
+ Hits                  34979    35552     +573     
+ Misses                16123    15516     -607     
- Partials               2714     2779      +65     

Files	Coverage Δ
framework/src/main/java/org/tron/core/Wallet.java	58.45% <ø> (+9.72%)	⬆️
...ices/http/solidity/SolidityNodeHttpApiService.java	94.11% <100.00%> (+91.08%)	⬆️
...a/org/tron/tool/litefullnode/LiteFullNodeTool.java	75.55% <100.00%> (+0.07%)	⬆️
...e/net/messagehandler/SyncBlockChainMsgHandler.java	30.15% <0.00%> (-1.59%)	⬇️
.../main/java/org/tron/core/db2/common/TxCacheDB.java	84.81% <81.39%> (-0.84%)	⬇️

... and 48 files with indirect coverage changes

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