Gh-3353: Ensure user info passed in GafferPop

[tb06904]

Addresses some of the issues with passing information from the REST API to gafferpop by ensuring each request now has its own instance of the tinkerpop graph layer so the variables are unique per request. Also stops the user from being reset immediately by the custom GraphStep.

Few other minor bits of tidying and improvements to otel logging.

Related issue

• Resolve Make sure user and info is passed in GafferPop #3353

[codecov]

Codecov Report

Attention: Patch coverage is 89.89899% with 10 lines in your changes missing coverage. Please review.

Project coverage is 68.06%. Comparing base (4eee4de) to head (2b911f2).
Report is 9 commits behind head on develop.

Files with missing lines	Patch %	Lines
...store/operation/handler/OperationChainHandler.java	20.00%	4 Missing ⚠️
...a/uk/gov/gchq/gaffer/tinkerpop/GafferPopGraph.java	91.89%	3 Missing ⚠️
...q/gaffer/rest/handler/GremlinWebSocketHandler.java	87.50%	1 Missing and 1 partial ⚠️
...gchq/gaffer/rest/controller/GremlinController.java	97.05%	1 Missing ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##             develop    #3354      +/-   ##
=============================================
- Coverage      68.08%   68.06%   -0.03%     
  Complexity      2596     2596              
=============================================
  Files            957      957              
  Lines          30670    30674       +4     
  Branches        3399     3402       +3     
=============================================
- Hits           20881    20877       -4     
- Misses          8304     8313       +9     
+ Partials        1485     1484       -1     

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[sonarqubecloud]

Quality Gate passed

Issues
0 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 SonarQube Cloud