Update dependency @embroider/macros to v1.16.6 - autoclosed #571

Job	Run time
Tests	6m 9s
Node Tests	4m 27s
Docs	4m 16s
Floating Dependencies	2m 52s
Coverage Report (default)	5m 58s
ember-lts-4.4, Chrome	7m 44s
Coverage Report (plain-html)	7m 25s
ember-lts-4.8, Chrome	7m 58s
Coverage Report (bs4)	8m 16s
ember-lts-4.12, Chrome	7m 55s
Coverage Report (bs5)	8m 20s
ember-lts-5.4, Chrome	7m 48s
ember-release, Chrome	8m 8s
ember-beta, Chrome	8m 10s
ember-canary, Chrome	7m 54s
ember-lts-4.4-with-plain-html, Chrome	7m 57s
ember-lts-4.8-with-plain-html, Chrome	7m 46s
ember-lts-4.12-with-plain-html, Chrome	7m 58s
ember-beta-with-plain-html, Chrome	7m 54s
ember-lts-4.4-with-ember-bootstrap-v4, Chrome	8m 9s
ember-lts-4.8-with-ember-bootstrap-v4, Chrome	8m 0s
ember-lts-4.12-with-ember-bootstrap-v4, Chrome	8m 3s
ember-beta-with-ember-bootstrap-v4, Chrome	8m 5s
ember-lts-4.4-with-ember-bootstrap-v5, Chrome	8m 8s
ember-lts-4.8-with-ember-bootstrap-v5, Chrome	8m 19s
ember-lts-4.12-with-ember-bootstrap-v5, Chrome	8m 8s
ember-beta-with-ember-bootstrap-v5, Chrome	8m 17s
embroider-safe, Chrome	7m 35s
embroider-optimized, Chrome	7m 49s
ember-release, Firefox	7m 47s
ember-default-with-ember-bootstrap-v4, Firefox	8m 48s
ember-default-with-ember-bootstrap-v5, Firefox	8m 44s
ember-default-with-plain-html, Firefox	8m 7s
Send Coverage Report	4m 4s
validate-success	1s
CI pipeline succeeded	1s
	4h 13m 0s

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