✅ improve format validation error output

[BenoitZugmeyer]

Motivation

When validating the RUM events schema, the error produced by additional properties isn't very informative

Changes

Add which property is unexpected in the error message

Test instructions

Checklist

• Tested locally
• Tested on staging
• Added unit tests for this change.
• Added e2e/integration tests for this change.

[datadog-datadog-prod-us1]

✅ Tests

🎉 All green!

❄️ No new flaky tests detected
🧪 All tests passed

🎯 Code Coverage
• Patch Coverage: 0.00%
• Total Coverage: 92.25% (-0.03%)

View detailed report

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[cit-pr-commenter]

Bundles Sizes Evolution

📦 Bundle Name	Base Size	Local Size	𝚫	𝚫%	Status
Rum	157.25 KiB	157.25 KiB	0 B	0.00%	✅
Rum Recorder	19.53 KiB	19.53 KiB	0 B	0.00%	✅
Rum Profiler	5.18 KiB	5.18 KiB	0 B	0.00%	✅
Logs	55.74 KiB	55.74 KiB	0 B	0.00%	✅
Flagging	N/A	931 B	931 B	N/A%	✅
Rum Slim	114.99 KiB	114.99 KiB	0 B	0.00%	✅
Worker	23.60 KiB	23.60 KiB	0 B	0.00%	✅

🚀 CPU Performance

Action Name	Base Average Cpu Time (ms)	Local Average Cpu Time (ms)	𝚫
addglobalcontext	0.008	0.008	-0.001
addaction	0.029	0.018	-0.011
addtiming	0.009	0.004	-0.005
adderror	0.031	0.021	-0.010
startstopsessionreplayrecording	0.003	0.001	-0.001
startview	0.011	0.005	-0.007
logmessage	0.057	0.024	-0.033

🧠 Memory Performance

Action Name	Base Consumption Memory (bytes)	Local Consumption Memory (bytes)	𝚫 (bytes)
addglobalcontext	25.77 KiB	26.27 KiB	513 B
addaction	45.93 KiB	46.07 KiB	145 B
addtiming	24.96 KiB	24.09 KiB	-895 B
adderror	49.96 KiB	51.33 KiB	1.37 KiB
startstopsessionreplayrecording	24.03 KiB	24.10 KiB	66 B
startview	424.71 KiB	428.72 KiB	4.01 KiB
logmessage	42.64 KiB	42.43 KiB	-213 B

🔗 RealWorld