Prepare 2.1.0 release #1160

Job	Run time
Linux Debug (gcc 8.3)	13m 56s
Linux Release (gcc 8.3)	12m 53s
Linux Debug (gcc 9.1)	15m 8s
Linux Release (gcc 9.1)	14m 42s
Linux Debug (gcc 10.1)	15m 9s
Linux Release (gcc 10.1)	15m 4s
Linux Debug (gcc 11.1)	14m 44s
Linux Release (gcc 11.1)	15m 2s
Linux Debug (gcc 12.1)	15m 23s
Linux Release (gcc 12.1)	15m 7s
Linux Debug (clang 15)	11m 59s
Linux Release (clang 15)	12m 43s
macOS Debug, Xcode 15.4, REALM_DISABLE_ALIGNED_STORAGE=1	6m 30s
macOS Debug, Xcode 15.4, REALM_DISABLE_ALIGNED_STORAGE=0	16m 13s
Windows Debug	15m 11s
macOS Release, Xcode 15.4, REALM_DISABLE_ALIGNED_STORAGE=1	5m 56s
macOS Release, Xcode 15.4, REALM_DISABLE_ALIGNED_STORAGE=0	15m 35s
Windows Release	15m 15s
Stop Stray Containers	2s
	4h 6m 32s

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