Add jira imports to usage data

What does this MR do?

It adds Jira import stats to the Usage data.

Queries

SELECT MIN("jira_imports"."id") FROM "jira_imports" WHERE "jira_imports"."status" = 4

• https://explain.depesz.com/s/PtiPhttps://explain.depesz.com/s/PtiP

SELECT MAX("jira_imports"."id") FROM "jira_imports" WHERE "jira_imports"."status" = 4

• https://explain.depesz.com/s/2Ugg

SELECT COUNT("jira_imports"."id") FROM "jira_imports" WHERE "jira_imports"."status" = 4 AND "jira_imports"."id" BETWEEN 0 AND 99999

• https://explain.depesz.com/s/QHRQ

SELECT COUNT("jira_imports"."id") FROM "jira_imports" WHERE "jira_imports"."status" = 4 AND "jira_imports"."id" BETWEEN 0 AND 99999

• https://explain.depesz.com/s/rLz1

SELECT MIN("jira_imports"."project_id") FROM "jira_imports" WHERE "jira_imports"."status" = 4

• https://explain.depesz.com/s/ZMuj

SELECT MAX("jira_imports"."project_id") FROM "jira_imports" WHERE "jira_imports"."status" = 4

• https://explain.depesz.com/s/7Lm

SELECT COUNT(DISTINCT "jira_imports"."project_id") FROM "jira_imports" WHERE "jira_imports"."status" = 4 AND "jira_imports"."project_id" BETWEEN 0 AND 9999

• https://explain.depesz.com/s/4QNP

SELECT SUM("jira_imports"."imported_issues_count") FROM "jira_imports" WHERE "jira_imports"."status" = 4

• https://explain.depesz.com/s/JlMx

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• [-] Documentation (if required)
• Code review guidelines
• [-] Merge request performance guidelines
• Style guides
• [-] Database guides
• [-] Separation of EE specific content

Availability and Testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.

Issue #208920 (closed)