Migrate the minimum support to Java 11.

[praveenkumarct]

Summary

Upgrade Java version minimum support from 8 to 11.

Description

We are missing updates from different libraries If we are still using Java 8 as minimum version, Hence upgraded to next stable version 11 as minimum version.

Relevant Issues

• Update all (major) #834

[codecov-commenter]

Codecov Report

Merging #840 (446436d) into master (b8153df) will increase coverage by 0.00%.
The diff coverage is n/a.

❗ Current head 446436d differs from pull request most recent head 38d37c2. Consider uploading reports for the commit 38d37c2 to get more accurate results

@@            Coverage Diff            @@
##             master     #840   +/-   ##
=========================================
  Coverage     99.17%   99.18%           
  Complexity     2684     2684           
=========================================
  Files           224      224           
  Lines          7175     7198   +23     
  Branches        442      440    -2     
=========================================
+ Hits           7116     7139   +23     
  Misses           31       31           
  Partials         28       28           

Impacted Files	Coverage Δ
.../sync/products/utils/ProductUpdateActionUtils.java	95.87% <0.00%> (-0.03%)	⬇️
...in/java/com/commercetools/sync/types/TypeSync.java	100.00% <0.00%> (ø)
...a/com/commercetools/sync/products/ProductSync.java	100.00% <0.00%> (ø)
...om/commercetools/sync/categories/CategorySync.java	100.00% <0.00%> (ø)
...om/commercetools/sync/commons/BaseSyncOptions.java	100.00% <0.00%> (ø)
.../commercetools/sync/commons/utils/FilterUtils.java	100.00% <0.00%> (ø)
...mercetools/sync/commons/utils/GraphQlQueryAll.java	100.00% <0.00%> (ø)
...ercetools/sync/customobjects/CustomObjectSync.java	100.00% <0.00%> (ø)
...ls/sync/commons/utils/CustomUpdateActionUtils.java	100.00% <0.00%> (ø)
...ync/shoppinglists/utils/ShoppingListSyncUtils.java	100.00% <0.00%> (ø)
... and 14 more

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[leungkinghin-ct]

It looks good to me