Update OPENJDK_TAG to merged level jdk-11.0.25+8 #267

Job	Run time
Select platforms	1s
linux-x64-hs-minimal / build (debug)	1m 40s
linux-x64-hs-nopch / build (debug)	1m 13s
linux-x64 / build (debug)	1m 18s
linux-cross-compile / build (aarch64)	3m 51s
linux-x64 / build (release)	1m 22s
linux-cross-compile / build (arm)	3m 29s
linux-cross-compile / build (s390x)	3m 19s
linux-x64-hs-optimized / build (debug)	1m 26s
linux-cross-compile / build (ppc64le)	4m 16s
linux-x64-hs-zero / build (debug)	2m 37s
linux-x86 / build (debug)	1m 43s
linux-x86 / build (release)	1m 30s
macos-aarch64 / build (debug)	2m 18s
macos-x64 / build (debug)	2m 15s
windows-aarch64 / build (debug)	3m 34s
macos-aarch64 / build (release)	2m 31s
macos-x64 / build (release)	2m 21s
windows-aarch64 / build (release)	3m 35s
windows-x64 / build (debug)	3m 31s
windows-x64 / build (release)	4m 40s
linux-x64	0s
linux-x86	0s
macos-x64	0s
windows-x64	0s
Remove bundle artifacts	1s
	52m 31s

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