ci: Removing usage of legacy runners

[campaigner-prod]

This repo is still using runner:main and/or runner:docker
which are legacy runners that will be decommissioned soon
due to running on EOL OS.
Campaign ran by @jorgetomtz

[github-actions]

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[cit-pr-commenter-54b7da]

Bundles Sizes Evolution

📦 Bundle Name	Base Size	Local Size	𝚫	𝚫%	Status
Rum	165.78 KiB	165.78 KiB	0 B	0.00%	✅
Rum Profiler	4.33 KiB	4.33 KiB	0 B	0.00%	✅
Rum Recorder	24.48 KiB	24.48 KiB	0 B	0.00%	✅
Logs	56.21 KiB	56.21 KiB	0 B	0.00%	✅
Flagging	944 B	944 B	0 B	0.00%	✅
Rum Slim	123.05 KiB	123.05 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	0.0039	0.0039	0.00%
RUM - add action	0.0129	0.0129	0.00%
RUM - add error	0.0123	0.0123	0.00%
RUM - add timing	0.0025	0.0025	0.00%
RUM - start view	0.003	0.003	0.00%
RUM - start/stop session replay recording	0.0006	0.0006	0.00%
Logs - log message	0.0143	0.0143	0.00%

🧠 Memory Performance

Action Name	Base Memory Consumption	Local Memory Consumption	𝚫
RUM - add global context	27.89 KiB	26.59 KiB	-1.29 KiB
RUM - add action	50.08 KiB	52.84 KiB	+2.76 KiB
RUM - add timing	27.36 KiB	26.26 KiB	-1.11 KiB
RUM - add error	55.79 KiB	58.31 KiB	+2.52 KiB
RUM - start/stop session replay recording	24.97 KiB	25.86 KiB	+914 B
RUM - start view	427.11 KiB	421.41 KiB	-5.70 KiB
Logs - log message	45.38 KiB	95.25 KiB	+49.87 KiB

🔗 RealWorld

[jorgetomtz]

Actually this should be moved to buildkit but no write access:

tags: ["arch:amd64"]
image: registry.ddbuild.io/images/docker:27.3.1
script:
  - docker buildx build --platform linux/amd64 --build-arg CHROME_PACKAGE_VERSION=$CHROME_PACKAGE_VERSION --tag $CI_IMAGE --push .

[datadog-datadog-prod-us1]

✅ Tests

🎉 All green!

❄️ No new flaky tests detected
🧪 All tests passed

🎯 Code Coverage
• Patch Coverage: 100.00%
• Overall Coverage: 77.25% (+0.00%)

View detailed report

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