devops: add DevContainer config #2617

Job	Run time
Java_21 (chromium)	4m 47s
stable (ubuntu-latest, chrome)	5m 5s
Java_21 (firefox)	9m 44s
dev (ubuntu-latest, chromium)	4m 51s
stable (windows-latest, chrome)	10m 19s
Java_21 (webkit)	30m 14s
dev (ubuntu-latest, firefox)	10m 13s
stable (macos-latest, chrome)	30m 22s
dev (ubuntu-latest, webkit)	30m 13s
stable (windows-latest, msedge)	22m 48s
dev (windows-latest, chromium)	7m 2s
stable (macos-latest, msedge)	30m 33s
dev (windows-latest, firefox)	12m 15s
dev (windows-latest, webkit)	8m 32s
dev (macos-latest, chromium)	12m 27s
dev (macos-latest, firefox)	19m 55s
dev (macos-latest, webkit)	17m 1s
	4h 26m 21s

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