Emit Ecto timings as metrics #897

Job	Run time
lint_format	14s
lint_compile	1m 3s
lint_dialyzer	3m 33s
test_diagnose	1m 15s
lint_git	8s
test_no_nif	44s
lint_credo	1m 1s
validate-changesets / Validate changesets	11s
test (1.19.5, 26)	1m 2s
test (1.13, 24)	1m 0s
test (1.18, 27)	56s
test (1.15, 26)	1m 0s
test (1.12, 24)	57s
test (1.14, 25)	59s
test (latest, 28)	57s
test (1.17, 27)	58s
test (1.16, 26)	57s
test (1.19.5, 28)	57s
test (1.19.5, 27)	56s
test (main, 28)	54s
	19m 42s

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