devops: add DevContainer config #2616

Job	Run time
Java_21 (chromium)	4m 37s
dev (ubuntu-latest, chromium)	4m 21s
Java_21 (firefox)	9m 27s
stable (ubuntu-latest, chrome)	6m 30s
dev (ubuntu-latest, firefox)	9m 42s
Java_21 (webkit)	8m 5s
stable (windows-latest, chrome)	10m 25s
dev (ubuntu-latest, webkit)	30m 13s
dev (windows-latest, chromium)	6m 14s
stable (macos-latest, chrome)	30m 18s
dev (windows-latest, firefox)	11m 50s
stable (windows-latest, msedge)	24m 11s
dev (windows-latest, webkit)	9m 0s
stable (macos-latest, msedge)	30m 21s
dev (macos-latest, chromium)	10m 45s
dev (macos-latest, firefox)	15m 23s
dev (macos-latest, webkit)	11m 56s
	3h 53m 18s

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