chore(deps): update peter-evans/create-pull-request action to v7 #2579

Job	Run time
lint:js	36s
lint:css	25s
lint:hbs	21s
lint:types	24s
test	45s
Ember Try (ember-3.28)	44s
Ember Try (ember-4.12)	43s
Ember Try (ember-5.4)	38s
Ember Try (ember-5.8)	48s
Ember Try (ember-5.12)	50s
Ember Try (ember-release)	37s
Ember Try (ember-beta)	39s
Ember Try (ember-canary)	48s
Ember Try (embroider-safe)	1m 2s
Ember Try (embroider-optimized)	44s
	10m 4s

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