ci: move -no-metrics to COMMON_EMULATOR_OPTIONS

[cakebaker]

This PR is a follow-up to #10051 where I overlooked that we set the emulator-options in two steps (Build and Test and Create and cache emulator image) and so I set -no-metrics only once. Thus the warning about the metrics collection is still shown.

The PR moves the -no-metrics setting to the COMMON_EMULATOR_OPTIONS, which should remove the warning.

[github-actions]

GNU testsuite comparison:

Skip an intermittent issue tests/tail/follow-name (fails in this run but passes in the 'main' branch)
Congrats! The gnu test tests/dd/stderr is no longer failing!
Congrats! The gnu test tests/tac/tac-2-nonseekable is no longer failing!
Congrats! The gnu test tests/tail/follow-stdin is no longer failing!

[codspeed-hq]

Merging this PR will improve performance by 4.44%

⚡ 1 improved benchmark
✅ 281 untouched benchmarks
⏩ 38 skipped benchmarks¹

Performance Changes

	Mode	Benchmark	BASE	HEAD	Efficiency
⚡	Memory	du_wide_tree[(5000, 500)]	1.3 MB	1.2 MB	+4.44%

---

_{Comparing cakebaker:ci_android_no_metrics (92905b4) with main (56cf70d)}

Footnotes

1. 38 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩