Add space between definitions in gradle build

[willyborankin]

Description

Added space between common_utils version and java libs versions (kafka_version, open_saml_version etc.) n the gradle.build file. in the buildscript ext section to avoid falires for auto backport to the 2.x branch

Check List

• [ ] New functionality includes testing
• [ ] New functionality has been documented
• [ ] Commits are signed per the DCO using --signoff

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[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 66.11%. Comparing base (6d35a0a) to head (c6ab057).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4304      +/-   ##
==========================================
- Coverage   66.12%   66.11%   -0.01%     
==========================================
  Files         302      302              
  Lines       21758    21758              
  Branches     3522     3522              
==========================================
- Hits        14387    14385       -2     
- Misses       5609     5610       +1     
- Partials     1762     1763       +1     

see 3 files with indirect coverage changes