Use consistent naming for remaining initialisms in internal/tool/testing
requested to merge gitlab-community/cluster-integration/gitlab-agent:fix-initialisms-in-internal-tool-testing into master
Improve naming for initialisms (#468 (closed)) in internal/tool/testing. The changes are made only in the testhelpers package.
- Rename spanId to spanID
- Rename AssertGetJsonRequestIsCorrect to AssertGetJSONRequestIsCorrect
- Rename AssertGetJsonRequest to AssertGetJSONRequest
- Rename traceId to traceID
- Rename AssertRequestContentTypeJson to AssertRequestContentTypeJSON
- Rename AssertRequestAcceptJson to AssertRequestAcceptJSON
- Rename ConfigProjectId to ConfigProjectID
- Rename UserId to UserID
- Rename ProjectId to ProjectID
- Rename AgentId to AgentID in testhelpers package
- Rename KasUserAgent to KASUserAgent