Test

Update dependency @glint/core to v1.2.1 #2688

Job	Run time
Tests	1m 51s
Floating dependencies	1m 19s
ember-try: ember-lts-3.28	1m 39s
ember-try: ember-lts-4.4	2m 10s
ember-try: ember-release	1m 56s
ember-try: ember-beta	1m 47s
ember-try: ember-canary	1m 41s
ember-try: embroider-safe	1m 43s
ember-try: embroider-optimized	1m 41s
ember-try: ember-classic	1m 38s
	17m 25s

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