[7.x] [Alerting][Connectors] Refactor Jira: Generic Implementation (phase one) (#73778)

[cnasikas]

Backports the following commits to 7.x:

• [Alerting][Connectors] Refactor Jira: Generic Implementation (phase one) ([Alerting][Connectors] Refactor Jira: Generic Implementation (phase one) #73778)

[kibanamachine]

💚 Build Succeeded

• continuous-integration/kibana-ci/pull-request
• Commit: 53dcb7f

Build metrics

@kbn/optimizer bundle module count

id	value	diff	baseline
securitySolution	1957	-5	1962
triggers_actions_ui	241	+17	224
total		+12

async chunks size

id	value	diff	baseline
securitySolution	9.9MB	-31.8KB	9.9MB
triggers_actions_ui	894.4KB	+157.1KB	737.3KB
total		+125.3KB

miscellaneous assets size

id	value	diff	baseline
securitySolution	326.0KB	-27.7KB	353.7KB
triggers_actions_ui	27.7KB	+27.7KB	0.0B
total		-0.0B

page load bundle size

id	value	diff	baseline
securitySolution	807.1KB	-6.5KB	813.6KB
triggers_actions_ui	274.6KB	+10.5KB	264.1KB
total		+3.9KB

distributable file count

id	value	diff	baseline
default	47182	+5	47177

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@elasticmachine merge upstream