CI/CD

ci: fix bundle size job not working on external PRs (#1801) #3432

Job	Run time
grafana-compatibilitycheck (ott-vis-panel)	2m 29s
test (18.x)	3m 8s
grafana-compatibilitycheck (ott-vis-datasource)	2m 38s
lint (18.x)	3m 6s
typos	4s
test (20.x)	2m 26s
Deploy Monolith on fly.io (prod)	2m 17s
Deploy Monolith on fly.io (staging)	2m 25s
Deploy docker image	7s
Deploy Balancer on fly.io (prod)	1m 42s
Deploy Balancer on fly.io (staging)	1m 47s
	22m 9s

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