prepare for 8.2.1 #1323

Job	Run time
flash-samples	38s
air-samples (4.0.5)	3m 28s
docs	29s
android	25m 54s
air-samples (4.1.5)	3m 9s
air-samples (4.2.5)	3m 39s
html5-samples	1m 16s
air-samples (4.3.1)	3m 25s
ios	14m 22s
linux	14m 35s
macos	1h 3m 0s
windows	15m 21s
package-haxelib	2m 25s
hashlinkc-samples (windows-latest)	1m 29s
neko-samples (3.4.7, windows-latest)	44s
hashlinkc-samples (ubuntu-20.04)	1m 28s
hashlink-samples (windows-latest)	43s
neko-samples (3.4.7, ubuntu-20.04)	15s
hashlinkc-samples (macos-12)	1m 58s
hashlink-samples (ubuntu-20.04)	16s
neko-samples (3.4.7, macos-12)	52s
hashlink-samples (macos-12)	44s
neko-samples (4.2.5, windows-latest)	41s
neko-samples (4.2.5, ubuntu-20.04)	18s
neko-samples (4.2.5, macos-12)	45s
notify	4s
	2h 41m 58s

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