fead: add OpenTelemetry observability support for modular inputs #1114

Job	Run time
meta	7s
fossa-scan	46s
pre-commit	38s
compliance-copyrights	26s
test-unit 3.10	2m 2s
semgrep / sast-scan	34s
test-unit 3.8	2m 4s
test-unit 3.7	2m 4s
test-unit 3.9	2m 2s
test-unit 3.11	1m 58s
test-unit 3.12	2m 8s
test-unit 3.13	2m 14s
test-splunk (9.3.2, d8bb32809498, false, false)	3m 56s
test-splunk (9.4.0, 6b4ebe426ca6, true, false)	2m 43s
publish	0s
	23m 42s

Provide feedback