devops: add DevContainer config #2615

Job	Run time
Java_21 (chromium)	4m 39s
Java_21 (firefox)	9m 30s
stable (ubuntu-latest, chrome)	5m 11s
dev (ubuntu-latest, chromium)	4m 21s
Java_21 (webkit)	30m 14s
stable (windows-latest, chrome)	11m 2s
dev (ubuntu-latest, firefox)	9m 29s
stable (macos-latest, chrome)	30m 22s
dev (ubuntu-latest, webkit)	30m 14s
stable (windows-latest, msedge)	27m 43s
dev (windows-latest, chromium)	6m 38s
stable (macos-latest, msedge)	30m 21s
dev (windows-latest, firefox)	12m 18s
dev (windows-latest, webkit)	8m 5s
dev (macos-latest, chromium)	11m 18s
dev (macos-latest, firefox)	16m 51s
dev (macos-latest, webkit)	13m 19s
	4h 21m 35s

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