Fix tablet contains null binary or date value serialize NPE

[HTHou]

Description

As title.

[codecov]

Codecov Report

Attention: Patch coverage is 94.11765% with 3 lines in your changes missing coverage. Please review.

Project coverage is 41.34%. Comparing base (4a5c902) to head (e82266c).
Report is 4 commits behind head on master.

Files with missing lines	Patch %	Lines
...va/org/apache/iotdb/session/util/SessionUtils.java	94.11%	3 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master   #13669      +/-   ##
============================================
+ Coverage     41.33%   41.34%   +0.01%     
  Complexity       71       71              
============================================
  Files          4005     4006       +1     
  Lines        249703   249808     +105     
  Branches      30361    30377      +16     
============================================
+ Hits         103212   103283      +71     
- Misses       146491   146525      +34     

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[sonarcloud]

Quality Gate passed

Issues
5 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud