fix exception with invalid date deserialization

[jenschude]

Closes #848

• Changeset added

Features

Fixes

Breaking changes

[codecov]

Codecov Report

Attention: Patch coverage is 86.36364% with 6 lines in your changes missing coverage. Please review.

Project coverage is 10.06%. Comparing base (fd3cdf6) to head (65d0484).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
.../commercetools/api/json/AttributeDeserializer.java	81.25%	3 Missing ⚠️
...ommercetools/api/json/CustomFieldDeserializer.java	78.57%	3 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main     #849      +/-   ##
============================================
+ Coverage     10.03%   10.06%   +0.02%     
- Complexity     1957     1967      +10     
============================================
  Files          6956     6956              
  Lines         67832    67867      +35     
  Branches        289      293       +4     
============================================
+ Hits           6809     6832      +23     
- Misses        60846    60859      +13     
+ Partials        177      176       -1     

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