👷 Fix TypeScript 6.x compatibility check deprecation errors

[thomas-lebeau]

Motivation

TypeScript 6 introduced deprecation warnings for certain compiler options (as a preparation for TypeScript 7, which turns them into errors). The check-typescript-compatibility script was failing because these deprecated options triggered errors when running compatibility checks against the latest TypeScript version.

Changes

• Add ignoreDeprecations: '6.0' to the compiler options for the affected TypeScript compatibility checks (latest, exactOptionalPropertyTypes, and ESNext checks) to suppress the deprecation errors.

Test instructions

Run the TypeScript compatibility check script:

yarn ts-node scripts/check-typescript-compatibility.ts

The script should complete without deprecation errors.

Checklist

• Tested locally
• Tested on staging
• Added unit tests for this change.
• Added e2e/integration tests for this change.
• Updated documentation and/or relevant AGENTS.md file

[cit-pr-commenter-54b7da]

Bundles Sizes Evolution

📦 Bundle Name	Base Size	Local Size	𝚫	𝚫%	Status
Rum	176.52 KiB	176.52 KiB	0 B	0.00%	✅
Rum Profiler	6.16 KiB	6.16 KiB	0 B	0.00%	✅
Rum Recorder	27.46 KiB	27.46 KiB	0 B	0.00%	✅
Logs	56.85 KiB	56.85 KiB	0 B	0.00%	✅
Rum Slim	132.16 KiB	132.16 KiB	0 B	0.00%	✅
Worker	23.63 KiB	23.63 KiB	0 B	0.00%	✅

🚀 CPU Performance

Action Name	Base CPU Time (ms)	Local CPU Time (ms)	𝚫%
RUM - add global context	0.0043	0.0044	+2.33%
RUM - add action	0.0124	0.0142	+14.52%
RUM - add error	0.0146	0.0155	+6.16%
RUM - add timing	0.0027	0.0029	+7.41%
RUM - start view	0.0122	0.0134	+9.84%
RUM - start/stop session replay recording	0.0007	0.0007	0.00%
Logs - log message	0.015	0.016	+6.67%

🧠 Memory Performance

Action Name	Base Memory Consumption	Local Memory Consumption	𝚫
RUM - add global context	26.40 KiB	27.32 KiB	+947 B
RUM - add action	98.98 KiB	99.13 KiB	+160 B
RUM - add timing	25.78 KiB	26.34 KiB	+579 B
RUM - add error	94.69 KiB	102.21 KiB	+7.52 KiB
RUM - start/stop session replay recording	25.68 KiB	25.32 KiB	-370 B
RUM - start view	466.03 KiB	474.25 KiB	+8.21 KiB
Logs - log message	45.31 KiB	46.26 KiB	+972 B

🔗 RealWorld

[datadog-datadog-prod-us1-2]

✅ Tests

🎉 All green!

❄️ No new flaky tests detected
🧪 All tests passed

🎯 Code Coverage (details)
• Patch Coverage: 100.00%
• Overall Coverage: 77.33% (+0.00%)

_{This comment will be updated automatically if new data arrives.
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